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1.
Name for the sunglasses strap first used by contractors, fishermen, golfers, etc, then made popular on college campuses in the south by fraternity guys. Considered by some to be the hallmark of the frat boy, much as the Vera Bradley purse is to the sorority girl.
Sport fisherman: I have croakies for my ray-bans that float in case they fall off in the water.

Frat boy: Me too!

Sport fisherman: The only time you need to worry about them falling off is when youre doing a kegstand.
 
2.
nasty, ugly, fugly, scary looking, fat
RT: ew look at that girl over there bro!!

Tyler: yeah dude shes croaky...
by TDOWD May 16, 2011
 
3.
the genatil area of the male body, or the balls.
"im going to kick you in the croakies!"
by shorti h September 03, 2009