Getting assjacked is all about being screwed over or taken advantage of. You either get jacked, or you've jacked someone else!
Promised a promotion at work, instead I got assjacked and they gave it to someone else!

Every time I fuel up, I'm being assjacked at the pump!
by donkeyrules October 03, 2014
Get a Assjacked mug for your cat Manley.
Inversion of jack ass. When calling someone a jackass is not enough you can refer to them as an assjack
That guy is worse than a jack ass he's a real assjack
by Libraryguy March 04, 2010
Get a AssJack mug for your sister Larisa.
An object, for example a small firm pillow, placed under a womens ass to elevate her vagina to the best angle for sex.
"Hey honey, lets use the assjack tonight. I want to be sure i hit your G-Spot."
by rilecat November 17, 2016
Get the AssJack neck gaiter and mug.
Nom. adj -- a person who is hopelessly stupid, offensive or socially hindered in the sense that their very presence has become a blight upon the fabric of existence. (Vulgation of the English "jack-ass," reportedly when the coiner of the phrase was too intoxicated to correctly say "jack-ass."
That John Ashcroft is such an assjack!
by Lane Haygood November 25, 2002
Get the assjack neck gaiter and mug.
Assjack. Noun. The semen that dribbles out of an ass after anal sex has been completed.

Adjective. Similar to jackass.
The woman used a douche to clean the assjack out of her colon.
by John Diss August 08, 2006
Get a assjack mug for your buddy Callisto.
A heterosexual male who likes to give it to his girl in her 'other' hole down there.
Hey Suzie, my man Tyrone is a grade-A assjacker; he was working my brown hole all night.
by Anonymous July 03, 2003
Get a Assjacker mug for your Facebook friend Jerry.