1. a wagging-dog world
   a go-to-the-dogs world
2. a doggy-dog world
   a dog-eat-dog world

It's a dog-eat-dog world out there. (And, as the joke goes, you're wearing Milkbone underwear.)

1. Alzheimer's
   Old-age
2. Old-timer's
   Senile

Although it's common to hear "old-timer's disease" to describe a person with dementia, there is no such thing. It's Alzheimer's disease, a type of dementia, that's the correct condtion.

1. mood
   moot
2. mute
   mutt

"Mute" point is becoming common, but the correct idiom is "moot" point.

1. hove
   hote
2. hone
   home

While a mission homes in on its target, you would "hone" your French-speaking skills in Paris.

1. bub
   bud
2. bun
   butt

You've nipped it in the bud, as if you were trimming a flowering plant.

1. faithful
   fatal
2. fateful
   fitful

They're always remember that fateful day in June when they met.

1. I couldn't care less.
   I could care less.
2. I wouldn't care less.
   I shouldn't care less.

The correct phrase is, "I couldn't care less." If you expand it, "I could not care less," means you care so little about something, there's nowhere to go but up. "I could care less," which is how most of us say it, suggests there's still leeway.

1. Respective
   Regardless
2. Irrespective
   Irregardless

While "irregardless" may sound correct, it's not really a word. Regardless, people still say it a lot.

1. wayside
   waste side
2. waist side
   wheyside

Sometimes when you don't do something, it's because it's "fallen by the wayside" (usually because you lose interest).

1. knock
   clock
2. chock
   chalk

Often misspoken as "chock it up," "chalk it up" is correct.

1. patice
   peace
2. piece
   relief

It's "peace of mind" you're looking for, not a piece.

1. bad
   baited
2. bated
   dragon's

We wait with bated breath, as the saying goes.

1. rain
   range
2. rein
   reign

Although many of us think it's "reign" with a "g," the correct saying is "free rein."

1. pike
   pipe
2. pipeline
   road

While you might have a project "in the pipline," in this turn of phrase, the new projects will be "coming down the pike" this year.

1. champing
   clamping
2. chomping
   clomping

This idiom comes from horseracing, so you'd think it'd be "chomping at the bit," like a horse. The expression is, actually, "champing at the bit."

1. slight
   sleight
2. might
   light

It was his practiced "sleight of hand" that paid off.

1. first-serve
   first-served
2. first-treated
   first-out

"Applicants will be met on a first-come, first-served basis," is correct.

1. back and
   beck and
2. beckon
   bottleneck and

To take care of someone's immediate requests is to be at their "beck and call."

1. practical
   intensive
2. intense and
   intents and

"For all intensive purposes" is a common mistake. But the idiom, which means, for all practical purposes, is, "for all intents and purposes."

1. Scot-free
   Scotch-free
2. Scots-free
   Scott-free

When you get away with it, you've gotten off scot-free.

1. can of worms
   escape goat
2. one-trick-pony
   scapegoat

That person's your scapegoat.

1. seated
   seeded
2. speeded
   stated

You've never told anyone about your deep-seated, not deep-seeded as many might think, fear of spiders.

1. shew
   shoe
2. shoo
   shui

Perfect for the job? He's a shoo-in.

1. gains
   pains
2. panes
   pangs

This one can be tricky! Although you might describe it as a hunger pain, these are actually "pangs."

1. peaked
   peeked
2. picked
   piqued

Your interest is "piqued," not peaked, peeked nor picked.

1. thing
   thingamabob
2. thingamajig
   think

While many people say, "You've got another thing coming," the correct turn of phrase is "another think."

1. wreak
   wreck
2. wrench
   wrest

Although it will probably wreck a lot of things, the tornado is predicted to "wreak havoc" on the town.

1. wed
   wet
2. whet
   whey

You "wet your whistle," but you don't "wet" your appetite. When something "whets your appetite," though, you're eager to know (or have, etc) more. It sounds similar, but it's not the same.

1. gybe
   jib
2. jibe
   jive

When you "jibe" with someone, you're in agreement, or at least compatible.

1. spit and image
   spitting image
2. splitting image
   spinning

This one is tough, and a lot of people say this idiom incorrectly. "Spitting image" is common, but "That boy is the spit and image of his grandfather," is correct.

1. peak
   peek
2. pick
   pique

Having a "sneak peek" of something means you have an early preview.

1. statuary
   statue
2. stature
   statute

A "statute of limitation" is a law that sets a time limit between the date of a crime, for instance, and how long you're given to initiate legal proceedings.

1. one and the same
   one, but the same
2. one in the same
   one of the same

Clark Kent and Superman are one and the same. As are Peter Parker and Spiderman. Iron Man and Tony Stark. We could go on ...

1. extricate
   extract
2. exempt
   exact

While it's fun to imagine "extracting" revenge, the cat will be "exacting" his revenge.

1. mother tongue
   tongue-and-cheek
2. tongue-and-groove
   tongue-in-cheek

When you're speaking sarcastically, yet lightheartedly, you've said it "tongue-in-cheek."