Top Definition
Fist my butthole
Please FMBH, Sam
by Beevus September 28, 2013
1 more definition
Stands for "Fuck My Bodily Health"
Adj.
1-Can be used when describing something stupid you did, or are going to do, that could have a negative effect on your body.
2-An outlet for your agression against being sick.
"Dude, when i jumped infront of that car i was like FMBH!"
"This cold is kicking my ass, FMBH"
by 5150fun September 17, 2009

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