assterbait 

A person that masterbaits in their asshole using either their finger or a dilhdo. can be done in combination with normal masterbaiting.

go back to assterbaiting you lazy fuck, its the only thing you seem to know how to do!

assterbait by Mr. scientist January 3, 2008

assturbation 

To pleasure the anal cavity of oneself with the intent of sexual gratification.

I really wanted to go down on her last night, but when I got home she was in the middle of an assturbation session to the new Justin Timberlake video.

assturbation by decamel August 28, 2013

Assturbate 

To bring oneself to orgasm by various acts of anal-simulation.

Vanilla masturbation doesn't work for me anymore, now the only way I can cum is if I assturbate.

Assturbate by Tenshin_ April 7, 2016

Assturbation 

Masturbation focused on pleasuring the butt, whether it be by massage or insertion.

Wow, this banana is frozen rock solid. I'm gonna have a good assturbation session tonight!

Assturbation by Twiggins Q. Neugebauer June 20, 2011

assturbation 

Masturbation restricted to the ass region. Usually performed by placing dildos, buttplugs, fingers, toothbrushes, or whatever else may be handy into the anal cavity. Lube is optional but highly recommended.

Suzy had never considered assturbation until she overheard Julie talking to Maria about shoving a 9 inch vibrator up her ass while fantasizing about Tom (Suzys dad).

assturbation by mindrape November 16, 2005

assterbater 

A one legged man whore who masturbates other men in their asshole's! And/or any man who uses another mans ass to masturbate.

Me: Hey John stop being an assterbater you gay fuck!:)

Kevin: No fuck that, I like it when he uses me to assterbate.

Me: YALL BETTER CALM DOWN WITH THAT SHIT!

assterbater by Jer and Ca$H February 28, 2008

Absterbate 

to exercise one's abdominal muscles excessively

Joe: "How was your work out?"

Bob: "Oh, man, I absterbated until I core-gasmed"

Absterbate by Adam Snider February 11, 2009