A veiny hemmorhoid that has swelled to infection, and looks like a hanging grape on a deciduous and woody vine.
Frank: Hey Steve, we saved you a seat, sit down.
Steve: I would Frank, but I'm afraid I'd bust my Butt Grape.
Steve: I would Frank, but I'm afraid I'd bust my Butt Grape.
by tedwilli9 September 27, 2008

When your anus gets a engorged hemorrhoid poking past the sphincter that looks like a prawn (an aquatic decapod crustacean similar to a shrimp) from forced anal sex in prison.
by Rudeeeey February 23, 2011

When one inadvertently purchases an app or in-app item from one's "smart" phone while it remains in his or her pocket.
Sebastian had to email Groupon to cancel his order of a 10-Speed Waterproof Vibrator after he accidently butt bought it.
Liz made a butt buy of 22222 Boosters in Candy Crush Saga.
Liz made a butt buy of 22222 Boosters in Candy Crush Saga.
by phehr May 27, 2014

When two men have so much sex that the receiving partners cheeks get stuck together from the dried man juice like two piece of metal that have been welded. Also a manufacturing term.
Guy: Last night I was with Brian and I Butt Welded him.
Other Person: What is that?
Guy: I came really hard and after I pulled out, he didn't wash his cheeks properly so the next morning his butt crack was stuck shut.
Other Person: I am your Grandmother, why would you tell me about Butt Welding?
Other Person: What is that?
Guy: I came really hard and after I pulled out, he didn't wash his cheeks properly so the next morning his butt crack was stuck shut.
Other Person: I am your Grandmother, why would you tell me about Butt Welding?
by I.B. Bangin' September 5, 2013

Never again will I consume that much tequila. I've got some firey butt batter today. It's so explosive I'll need to perform a peripheral wipe when I'm done.
by Eaton Holgoode November 23, 2016

A reference to homesexual activity.
Very similar to: mixing your peanut butter, playing dump truck, doing the chocolate cha cha, fishing for brown trout, and dinner mashing.
Very similar to: mixing your peanut butter, playing dump truck, doing the chocolate cha cha, fishing for brown trout, and dinner mashing.
by tv1827 July 27, 2010

The pain you get in your ass from sitting on it all day. Discomfort can also be in the lower back.
This was referenced in S06 E21 of the popular TV Show "New Girl" (2011-2018) when Jessica Day, suffering from heartbreak, refused to leave the house.
This was referenced in S06 E21 of the popular TV Show "New Girl" (2011-2018) when Jessica Day, suffering from heartbreak, refused to leave the house.
"Let's just get you out of this house"
"Yeah, right"
"Well what are you going to do? You're gonna sit on this couch all day long? You'll get sofa butt. C'mon, let's go get some ice cream."
"Yeah, right"
"Well what are you going to do? You're gonna sit on this couch all day long? You'll get sofa butt. C'mon, let's go get some ice cream."
by Abhay The Great June 11, 2019
