Goombutt 

A butt with a shape similar to that of a Goomba, the brown, mushroom-like enemy from the Super Mario video game franchise. Like a trapezoid with rounded corners, the butt is wider at the bottom than the top and horizontally flat across the lower edge. In form fitting pants, rather than looking like a pair of melons, the goombutt looks more like an underfilled water balloon sitting on a table.

I thought she looked good, but then she turned around and saw that she's got a goombutt. That chick needs to get her ass to the gym.

Goombutt by 0peny0ureyes June 7, 2019

goofbutts 

Slang term for marijuana cigarettes (joints) dating back to at least the 1940s.

"Uncle Jim was in the Navy during World War II and he said they smoked joints onboard all the time. They called them 'goofbutts'."

goofbutts by HairyMelvin October 9, 2014

goobutt 

A common and and undesirable problem that occurs when one does not wipe themselves after defecating (pooping). It can also occur after one poops but wipes well and then engages in an aerobic excersise, this situation is often called swass(Literally "sweaty-ass"). Do the human race a favor and just wipe.

I went poop and ran out of toilet paper and now I have goobutt.

I went poop earlier and after I went for a jog and now I have swass.

goobutt by jvero-b November 20, 2004

goofbutt 

One of innumerable terms given to marijuana in the '70's by older stoners. I met a 'Frieda' in Maine once who used this.

"You guys smokin some of that there goofbutt?"

goofbutt by forcryeeye! February 5, 2010

Goodbutt 

A cigarette butt found in ash trays and sidewalks that can be smoked when money and cigarettes run out. Typically good for one or two hits before you start burning your lips.

"I'm ready to smoke a Goodbutt tonight."

"Grab me one of them Goodbutts."

Goodbutt by newxdayxkickingx June 17, 2009