An exclamation of disgust or disapproval.
"Hey, you want a bite of my peanut-butter and kielbasa sandwich?"
"BOOSCH! That's nasty!"
"Yo... Condoleeza Rice is totally HOT"
"BOOSCH, dude! You need a new prescription!"
1.Saying something rude to someone like bitch, idiot, dumbass, the list goes on.
1.Don't be a boosch!
2.Don't hit me stupid boosch !