After taking four or more Ambiens and forcing yourself to stay awake, you become convinced that adding a thumb or finger in your ass will improve the masterbation in which you are already involved. This applies both to the male and female. Further, the digit in your ass need not be your own.
Hey Dad. Yes son. Last night I got so fucked up on Ambien I stuck a finger in my ass while masterbating. Is that normal? Son, you Ambien Assturbated. It's all good.

Dude, last night Jen and I got fucked up on Ambien, stayed awake, and while were making out she stuck a finger in my ass...and I didn't stop her. Dude, you were Ambien Assturbated.
by tst2000 October 5, 2010
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A sexual act in which two women (or men, whatever the preference) simultaneously jerk off an erect male using both of their asses with the penis in between the four ass cheeks, long-ways along both ass cracks.
Being the booty lover that he is, Stan likes to get a couple of big assed girls, oil up their thick booties, and get them to jerk him off using the ol' double assturbation technique.
by actionman777 April 2, 2010
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The homosexual counterpart of the masturbation-fueled car. It is a car that has been painted in all sorts of gay pride colors, symbols, and slogans, and is driven by a gay man or lesbian in hopes that he/she will get as many gay lovers as desired.
Why just look at that faggot asshat in the assturbation-fueled car over there!
by Mark H July 15, 2004
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The penetration of the asshole
“I like assturbation, da Wayne likes to see me penetrate my booty whole”
by Flecha January 24, 2019
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Taking a shit while browsing porn that you will then proceed to masturbate to.
Perry: How was your day yesterday?
Gavin: Great, I had a real nice assturbation session.
by RobotLunchbox December 8, 2016
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