Top 30 eggcorns

To be pacific (instead of to be specific)
An escape goat (instead of a scapegoat)
Damp squid (instead of damp squib)
Nipped it in the butt (instead of nipped in the bud)
On tender hooks (instead of on tenterhooks)
Cold slaw (instead of coleslaw)
A doggie-dog world (instead of dog-eat-dog world)
Circus-sized (instead of circumcised)
Lack toast and tolerant (instead of lactose intolerant)
Got off scotch free (instead of got off scot-free)
To all intensive purposes (instead of to all intents and purposes)
Boo to a ghost (instead of boo to a goose)
Card shark (instead of card sharp)
Butt naked (instead of buck naked)
Hunger pains (instead of hunger pangs)
Tongue and cheek (instead of tongue-in-cheek)
It’s a mute point (instead of moot point)
Pass mustard (instead of pass muster)
Just deserves (instead of just deserts)
Foe par (instead of faux pas)
Social leopard (instead of social leper)
Biting my time (instead of biding my time)
Curled up in the feeble position (instead of curled up in the foetal position)
Curve your enthusiasm (instead of curb your enthusiasm)
Heimlich remover (instead of Heimlich manoeuvre)
Ex-patriot (instead of expatriate)
Extract revenge (instead of exact revenge)
Self -depreciating (instead of self-deprecating)
As dust fell (instead of as dusk fell)
Last stitch effort (instead of last ditch effort)

Source: OnePoll.com