Top Definition
A dude who's really good at butt-fucking.
Gay dudes call Lamar the "Ass Master!"
by Paul Thundergod June 24, 2003
An extremely flaming homosexual person.
Matt is an assmaster, he likes the cock too much.
by Weirdboyscott January 06, 2003
An expert at anal sex and often used in connection with a martial arts theme.
Jill's new boyfriend is an eight degree black belt, maximum thickness, assmaster and Jill's ass is his new dojo.
by cartman69 March 30, 2005
Someone who is know it all of all things to do with ass. A person who likes to tap that ass and loves asses.
He thinks he's the ass master but he knows nothing about it.
Hey you, Ass master come and get up on this
by Coolata.slut October 01, 2004
A man who, through intense dedication of his entire being, has mastered the the pursuit and attainment of the female ass.

The Yoda form of the celebrated Ass Maven.
Wow! Having dedicated his whole being to the pursuit of the female ass, he has truly become an Ass Master!

O, Ass Master - we are not worthy and bow before you! Teach us!
by Joe Pellerin May 13, 2005
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