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a girl that isn't really cute but is so sexual that you wanna tap it anyway.
A girl is coosh if she shows up at your door wearing only short shorts and a bra... my boy rob thinks that any girl with a lower back tattoo is coosh.
by Bill May 07, 2005
n.pronounced like loose
1.another name for vagina
2.a bitchy girl
1.The girl that called amy fat is such a coosh.
2.Uhhh, my coosh itches

by amanda schelonka July 30, 2008
Better than "cool." A good, good, possibly even exciting thing.
Mary- "Hey, Susie, I just made the cheerleading squad!!"

Susie-"Oh, coosh! Thats really coosh!"

by Courtnie August 03, 2003