Astroid Ass 

When a girl has a butt that just looks fucking fantastic in pants, but once the pants come off it has so many craters it looks like an astroid.

Can also sometimes been seen when wearing very tight skirts.

Example 1
Girl 1: Ugh, she has such an astroid ass! Everyone thinks it looks so nice, but it's really not that nice!
Girl 2: I know dude, I saw that shit in the locker room the other day!
Example 2
Student 1: Dude, Ms D has such a nice ass!
Student 2: It's not that nice dude, wait until she turns around in that tight skirt. That shit's an astroid ass!

Astroid Ass by BagFullOfBlowjobs December 13, 2014

assteroid 

An asshole of asteroid or planetoid proportions.

Though not gifted with the ability to articulate his feelings in a socially aceptable way, Larry was able to compensate by behaving like an assteroid and getting his point across quite effectively.

assteroid by harry flashman July 13, 2003

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.

assteroid by Keylimeypie December 20, 2007

Assteroid 

A really inflamed hemorrhoid.

Bob: I have a raging assteroid!

Rob: That really sucks!

Assteroid by chunihan February 14, 2013

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.

assteroid by Keylimeypie December 20, 2007