Bungthump 

Due to the misinterpretation of a bung as a "butthole," a bungthump is slang for when two or more people, whether of the same gender or not, that are more than acquaintances lay on the ground in a circle on knees and elbows, each facing one another's rears in counter-clockwise direction, and thump the anus of the person in front of them with the middle finger on their right hand. This is commonly practiced at frat parties and backstage for good luck at metal concerts.

Hey man, I hear we missed out on an awesome bungthump at the wedding party Friday.

Bungthump by Fart McBitch August 20, 2009

butthump 

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.

butthump by vertigo23 April 19, 2009

butthumper 

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.

butthumper by bullshark April 1, 2008

Butthumper 

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 by hames666 August 16, 2019

bunkahumpa 

one who humps bunkers.

That george is such a bunkahumpa.

bunkahumpa by bobby November 29, 2003

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!

butthumper by Maria Peters October 3, 2007

butthumper 

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.

butthumper by Maria Peters October 2, 2007