Insulated sleeve usually comprised of foam rubber used to both enhance the grip of your beer bottle or can as well as keep the beer cold and your hand warm.
Brooling's hands being extremely sensitive to cold required him to use a coozy everytime he drank a beer
by Liechty July 14, 2004
Get the coozymug. 
by Bishmilla July 12, 2004
Get the coozymug. One of the most awesome games every played in a swimming pool this side of Marco Polo. All players are equipped with a beer and when any person yells "Coozie", the last person to take a drink must finish their beer while the other players splash in a drowning attempt.
We were supposed to go to Cedar Point at 7 this morning, but after last night's wicked game of Coozie, we didn't get up on time.
by JimmyCDz August 4, 2011
Get the Cooziemug. Slang, vulgar, for vagina. I suppose the common use of the word for the thing that hold's ones beer bottle came from the idea of slipping it into a vagina
by atto August 1, 2010
Get the cooziemug. Coozies is a word that started in Chicago and the reached southern california. Coozies means cool, often sed in a funny unserious voice. Used by funny people especially. The word itself means cool.
by Daniel Newsom July 6, 2004
Get the cooziesmug. 