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another word for dumbass, can be used instead of cursing
That person is such a dumbit!
by Desiree Linn July 10, 2008
a phrase that is a combination of "darn it" or "damn it" with "dumb", said when a girl accidentally walks into a tree branch and she mixes up her thoughts!
"Hey! Look out for that tree bench!"

"Huh?" (smack) "AHHH, DUMBIT!"
by afdoublezbaby November 28, 2007