1. frogs
   umbrellas
2. cats and dogs
   burgers and fries

This idiom means it's raining really hard. The phrase is so old that we're not sure where it came from - one theory is that it came from an obsolete word, "catadupe," which meant "waterfall."

1. hippos
   wolf
2. long
   out

To "cry wolf" comes from an old children's tale, "The Boy Who Cried Wolf." In it, the shepherd boy loses sheep because he "cried wolf" so many times that villagers stopped taking his alarm seriously.

1. nose
   eyes
2. teeth
   llama

If you've just barely managed to do something, you've done it "by the skin of your teeth." It actually comes from the Book of Job, but historians aren't clear on what inspired its use.

1. duck
   jiffy
2. nutshell
   tree

The phrase "in a nutshell" is used when someone is summing up a story. Use of the phrase goes all the way back to ancient Rome, but it was popularized by Shakespeare.

1. drama
   clear
2. crocodile
   faux

Someone overly dramatic who uses emotions to manipulate people might be accused of crying "crocodile tears." Ancient people believed that crocodiles wept during their meals -- perhaps to lure more victims.

1. dough
   nail
2. door
   pavement

"Pounding the pavement" is an expression for taking a long, purposeful walk, typically in reference to finding a job. If you actually got out and went door to door in the business district, your feet would literally be pounding the pavement!

1. bucket
   moose
2. ladder
   ball

"Kicking the bucket" is an idiom for dying. Its origin is far from lighthearted: the phrase possibly originated when people who hung themselves would kick the bucket they were standing on.

1. case
   people
2. guns
   soup

People who "stick to their guns" aren't going to give up easily. It originally meant to hold your own in battle instead of fleeing.

1. vase
   leg
2. glass
   new one

The expression "break a leg" seems cruel when considered literally, but it's actually a way to wish someone good luck. It arose from superstition - people thought if they mentioned something bad, something good would happen instead.

1. judge
   mouse
2. horse
   kitten

To get the truth "straight from the horse's mouth," you have to talk to a first-hand witness. The phrase originated from buying and selling horses; you could verify a horse's age, for example, by examining its teeth.

1. wig
   pig
2. sprig
   dig

A "bigwig" is someone who's really important or wealthy -- for example, the CEO of the company where you work. The saying springs from the British, who wore large, white wigs if they were important and rich enough to afford them.

1. page
   leaf
2. stone
   cuff

To 'leave no stone unturned' is to be extremely careful and thorough while researching something. The phrase is often used to describe a criminal investigation, a research project, or a search for a lost item.

1. sheet
   leaf
2. coin
   drawing

'Turning over a new leaf' refers to starting fresh. Just like trees grow new leaves each spring, so too can we look for times to begin anew.

1. real
   good
2. together
   now

The phrase "get it together" means that someone needs to compose themselves and perform to a higher standard, be it in work, school or just life in general.

1. freak
   peace
2. ship
   trip

The phrase "shape up or ship out" means that someone needs to perform better or leave. It originated in American military forces when soldiers or sailors were underperforming.

1. cheese
   ice
2. leaves
   slack

If you cut someone some slack, you're easing up on expectations or being more understanding - at least for now. It began as a nautical term.

1. pennies
   raindrops
2. waterfalls
   chips

This fun idiom from poker means that you have to let things happen, and then react accordingly. Sometimes, there's just nothing more you can do.

1. harvest
   blue
2. bear
   winter

Occasionally, there will be two full moons in one calendar month; in modern times, this phenomenon has been dubbed a "blue moon." In addition, the moon sometimes takes on a blue appearance when enough ash particles are in the atmosphere, such as when the volcano known as Krakatoa exploded.

1. hay
   ball
2. nail
   down

Hitting the hay is the equivalent of going to bed. In the 19th and early 20th centuries, beds were often sacks stuffed with hay. The expression "hit the hay" and "hit the sack" are interchangeable.

1. there
   time
2. ten
   trees

"Hang in there" is a phrase commonly used to comfort someone who's having a rough time. A popular theory points to a widely circulated photograph of a kitting hanging from a silk rope as the culprit for the now-popular phrase.

1. swing
   hurt
2. shoot
   bounce

The phrase comes from the wild days when men whipped out pistols from their holsters and fired at hip level. Now, it refers to someone who makes snap decisions and says things without always thinking them through.

1. coffee
   low
2. battery
   fumes

When a car's gas tank gets low, the only thing keeping it running are the leftover fumes from the gas. This led to the expression "running on fumes," which is often used when someone just can't keep going without sleep and/or food. A similar expression is "running on empty."

1. won't
   couldn't
2. should
   don't

If you "couldn't care less" about something, then you don't care very much at all. "Could care less" is often mistaken for this phrase, which was popularized in the US sometime in the '50s.

1. blue
   out
2. town
   pink

Someone who's "tickled pink" is thrilled or delighted with something. It arose from the shade your face might turn if tickled for an extended period of time.

1. dream
   drowsy
2. skeleton
   MIA

Alas, this exciting phrase has nothing to do with graveyards or the walking dead: instead, it refers to the premise that a person's skeleton is the bare minimum for maintaining a human-looking appearance.

1. outs
   fence
2. rocks
   slope

In this idiom, the fence is an imaginary dividing line between one decision or another, and the indecisive person is straddling the divider - in other words, "on the fence."

1. trash
   ease
2. gold
   cake

If you can do it without thinking, it's a "piece of cake." It most likely originated from contests in the late nineteenth century, when cakes were given as prizes.

1. fly
   speak
2. dance
   unicycle

"When pigs can fly" or "when pigs fly" is an expression of disbelief: something is so unlikely that it won't happen until pigs can fly (a very unlikely event indeed).

1. author
   illustrations
2. font
   cover

This common expression is used to mean that you shouldn't make assumptions about a situation or person based on appearance alone. You may find your initial assessment to be quite wrong!

1. buck
   bill
2. boat
   punch

Missing the boat (arriving too late to board the vehicle headed the way you wanted to go) was a sorry thing indeed - so sorry, in fact, that it became an idiom for missing an opportunity.

1. barn
   stable
2. field
   race

If you "don't have a horse in the race," then you don't have anything staked on the outcome of a certain event. This idiom clearly came from the practice of betting on horse races.

1. benches
   animals
2. congregation
   choir

The phrase "preaching to the choir" is commonly used to describe someone speaking to a group that is already in agreement. A pastor telling the people already in church that it's important to be in church on Sunday would be "preaching to the choir."

1. cook
   spill
2. count
   stack

If you "spill the beans," then you've just revealed a secret, whether it's yours to reveal or not. Some say this idiom hails from ancient Greece, when votes were cast secretly with white or black beans; spilling them meant that the tally would be known too soon!

1. parties
   hair
2. sheets
   oats

If a man is known for "sowing his wild oats," then he's known for sleeping around. Wild oats were not considered to be useful in the 16th century, nor was it helpful for a man to father children outside the family.

1. herring
   sun
2. morning
   balloon

Red herrings were apparently used to train hunting dogs to follow a scent despite the herring's sharp smell, and some say escaped prisoners would use the fish to throw the dogs off the trail during their escape. In both cases, the "red herring" is used as a distraction!