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A guy I know named Aaron who is an idiot and basically a complete screw off until the last minute and even then.....
Aaron: Hey dude how do you convert a decimal into a percent???
Some Random Person: Jeez your suck a dumbass.
dumbass by Game Crazy July 16, 2008
an ass that is of low intelligiaaance
You have a dumbass
dumbass by heebie jeebie February 5, 2003
Whatone will be if (s)he doesn't want to go to school and thinks the info they learn there is useless.
dumbass by dj gs68 September 1, 2003
A marine located in the 7th grade that shoots bullets up his ass
It-Did you hear dumbass bought more fucking bullets-Me-Damn it! I dun told he...GUNSHOT NOISE...-Dumbass-Oh shiiiittt
Dumbass by Mr. FBI Man November 14, 2018