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 BeyoncΓ© to release the Renaissance visuals, she said, "No! Try to visualize it all up in your mind!"
When all a guy thinks about is looking up a girls skirt
Hey stop that peeping tom hes all about the up skirting.
190π 127π
To get up in ones nasty; grill; face.
(Blocks the basketball in 3 on 3 basketball)
I just got all up in yo' nasty.
6π 6π
The act of having anal sex with another person.
Though the phrase does not necessarily have to be used in that fashion. It can be used whenever the user feels it is appropriate
Aw man i was mackin those bitches and i gots to do them all up in da butt.
or...Hey lets get some ice cream all up in da butt!
9π 12π
all up in my grill means when someone is all up in your business or all up in your body area
guy comes up places hand on girls boob
girl says: oh boy...you are all up in my grill, you better get off
121π 261π
Being nosey. Buttin in when not invited.
"Why you all up in my biznezz girl, no one asked you."
4π 5π