Gaster Asster

The gluteus maximus of Gaster from the game undertale . used as a joke to express sexual attraction towards the character.

person 1: i find Gaster attractive..
person 2: so does that mean you like his Gaster asster?

by songtune May 20, 2016

assterbate

anal masterbation

That skank ho was assterbating with her butt plug

by fizgig April 7, 2003

Assteroid

A really inflamed hemorrhoid.

Bob: I have a raging assteroid!

Rob: That really sucks!

by chunihan February 14, 2013

Assterbation

the practise of rubbing ones genitals while dancing.

Mrs. Rode said if she sees assterbation on the dance floor she will put on her jacket and leave

by Chrissy Rode December 4, 2009

assmerchant

A manwhore who prowls after other men. This can also be a John or Pimp selling their ass but mainly the assmerchant will take what ever he can get regardless of fees or rewards.

That Mark is such an assmerchant!

by Vern Nacular October 6, 2006

Asstertaste

Portmanteau of ass + after taste. Typically used when describing a food or drink with a bad after taste.

Well hopefully this beer won't have the asstertaste like the last one.

by c0rrupt December 28, 2005

assteroid

A small fissure in the anus that causes stool passage to be painful. Not large enough to be a hemorrhoid.

I had a particularly painful crap today. I think I might have an assteroid.

by Keylimeypie December 20, 2007