He boned her without a rubber? what a fumbass!
by Pat.T May 8, 2006
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dumbasses who can't type, no matter the time of day
"I CAN'T FUCKNGIN TYPE"
"you're such a fucking fumbass"
by Fumbass December 19, 2021
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Fumbass meaning:

To describe someone being idiotic or a fucking dumbass
Fucking+dumbass= Fumbass
Joey: You're such a fumbass
Dani: Wow I can't believe you
by BEE_3 January 29, 2021
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Fumbass is a word to describe your idiotic friend
Joey: DANI YOU FUMBASS
Dani: TwT
by BEE_3 January 29, 2021
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a person who is incapable of speaking to as they lack sense. this person is dangerous as they may cause severe frustration and anger or in some cases death to one that may take the risks of talking to them. a fucking dumbass.
person 1: i talked to joe today and it was so tedious and hard. he’s annoying asf.

person 2: yeah joe’s a fumbass
by user372828282 July 17, 2022
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