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To create a complete mess; establish a state of disorder akin to immersing oneself in a world of unpleasant ass.
Don't do it, man. Adding that coconut milk would seriously ass up the marinara sauce.

OR: The project was moving along smoothly until Jared completely assed everything up.
by speedgoat January 16, 2008
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Apr 20 Word of the Day
A term used to reference cannabis/marijuana/weed.
This Jazz Cabbage got me zooted. Jazz Cabbage is less harmful than Squares. I’m smoking that Jazz Cabbage boy.
by Gypsiehood97 December 30, 2017
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To prepare and or raise one’s ass up in position for anal sex.
Ok baby, it’s time to ass up.

She was ass up and ready to go when I walked in the door.

Let me run to the bathroom first so I can ass up. I’m a little dirty down there.
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by Eaton Holgoode February 05, 2018
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the more vulgar form of shutup now.
bob:didn't you say you'd pay me back today???
ann:no, i sed tomorrow
bob:liz, didnt ann say she'd pay me back today
liz:umm...yea...she said that to me too
bob:i'ma need your broke ass to pay me ass up.

*note-ass up can also be said as ass the hell up to add more emphasis to the fry or burn that just took place or it can be said as ass the fuck up to add EVEN MORE emphasis and make sed fry or burn even more epic...
just have fun with it
by pootytrained February 09, 2009
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Behavior characterized by boastful or proud display of one's most loutish, childish, or in your face traits in public. Also, any advertising, television programming, or music intended for consumption by such persons.
I don't wanna go there, that restaurant caters to the ass-up crowd. The movie we saw was totally ass-up. My coworkers were being so ass-up that I just clapped on my headphones and cranked the music.
by Dawnera September 04, 2006
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To trip over something or fall over in such a way that it temporarily results in one's rear end being at a higher altitude than one's face.
I tripped over a cable and fell flat on my face. Totally went Ass Up.
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by MeepusMaximus January 01, 2020
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