A male who is obsessed with all things ass. Male, Female, animal... you name it. If it has an ass, he wants to stick it.
by T-Bone March 8, 2003
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ie, the STAIRMASTER. a torcherous device used to make one's ass UNfreakingBELIEVABLY hot+++.
Today I rode the assmaster for an hour and I can feel my ass assilating into teh hotness. My ex boyfriend cried when he saw my sweet, sweet, beautiful ass.
by taterbug2821 November 28, 2004
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a person who is the master of bieng an ass...
kc is being a really big ass master today
by yo mama March 1, 2004
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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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Name for someone who likes booty
Gary is the "Ass Master"
by ohplz September 30, 2004
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The act of filming gay porn on a boat while fishing. It is a play on the words "Bass Masters".
You guys wanna do an Ass Masters at the lake today?
by conleyrich January 9, 2010
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