To unlock a door with a magnetic card lock, without first removing the card from your wallet, or the wallet from your back pocket.
Nobody was around, and I was in a hurry, so I just butthumped the server room door open.
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Immune to the laws of physics and incapable of independent activity, the butthumper finds your rear bumper on an open stretch of highway, and stays there. The asshole may be using you as a shield against radar, or as a fuel-mileage aid, but usually he/she is talking on the phone and relying on you to scan the road for them.
Ten lanes of superhighway to drive on and this jerk has to tailgate me. What a butthumper.
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a person who uses there butt to hump the grass
phillip butthumped the grass to get the shit of his ass he is a butthumper
Butthumper is a good term to call a homosexual man, who likes to take it in the end, who is being an asshole!
Kyle, you are butthumper, douche bag!
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Butthumper, someone who is a homosexual faggot, and likes to take it in the end. Also someone who walks with their butt sticking in the air!
Garrick, you are a butthumper.
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