Top Definition
an insult to someone who sits on their ass all day. can also refer to a jew.
dude1: whoa check out that buttfat!
dude2: yeh bro wouldnt like to be sat on by him
dude1: srsly
dude2: yeh
dude1: shit
dude2: dang
by Todd Harley July 04, 2008
5 Words related to buttfat

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