Can either be used to describe a type of delusion or how you visualize things in your brain when whatever you're thinking of doesn't actually exist.
When I asked Beyoncé to release the Renaissance visuals, she said, "No! Try to visualize it all up in your mind!"
by Alien Superstar April 21, 2023
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Utterance, commonly made by someone who intrudes on another in the bathroom
Person 1: Dude, you got corn chunks all up in your shit.
Person 2: Don't you ever knock?
by Jrizzle December 17, 2004
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To be all over a person in a sexual fashion.
"Yowanda wants me up all in her grill tonight!"
by Peterson September 7, 2004
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1. To party hard. Used to describe a situation that requires the utmost celebration.

2. To be very drunk.
1. Pauly: Tomorrow's the last day of summer break, we're going to have to go all out.

Jimbo: You'll have to go all out with your balls out.

2. Pauly: Ben was so drunk last night.

Jimbo: He went all out with his balls out, that's forsure.
by EC-JM January 23, 2010
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To go on a hateful killspree, particularly on one's parents. Derived from the infamous Menendez brother murders ca. 1996.
"Dad, if you keep on drinking tequila and beating up grandma, I'll go all Menendez on your ass."
by waitsfan75 April 26, 2006
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noun: the act of involving yourself in another pesons affairs, with intent to eliminate any chance of them completing or succeeding their goals
Girl: You biach give me back my boyfriend!!
Friend: You hoe you dont deserve him!!
Girl: Ya, it's about time I get all up in your business!
by PaulM92 January 22, 2011
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