assturbing
When someone is bothering you, on purpose, and won't leave you alone when you are trying to get something done, they are assturbing you. As in, they are disturbing you, and being an ass about it.
I was trying to do my work and that kid was assturbing me.
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.
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.
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
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).
assturbate
masturbating in your ass, or to sodomize yourself
"I'm going to assturbate with a dildo"
assturbating
The act of anal masturbation using either a finger or another tool.
Alyssa was assturbating during English class today.