assturdbait 

To fuck your self in the ass with finger didlo or other

Go assturdbait your self.

assturdbait by DieHardDeus July 18, 2005

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

Assturdbation 

The act of stimulating the anus by excreting feces partially out of one's own ass, then allowing the natural pressure of the anus to suck the feces back into one's own rectum. The process is repeated to one's satisfaction.

Dude1: So I've been trying out assturdbation lately.
Dude2: Oh man, I tried that once, it didn't work for me. Too much leakage.
Dude1: Yeah man, you've got to change your diet to avoid all types of fiber.

Assturdbation by gfaisjdfjjwejo July 8, 2016

assturbate 

masturbating in your ass, or to sodomize yourself

"I'm going to assturbate with a dildo"

assturbate by Seth and Sam July 11, 2009