The act of hooking up with some chick or dude. During the process of "Tearing it up", the chick, or dude, gets so fucking horny they ferociously rip, or gently slip, of their clothes and/or undergarments.(hopefully).
Example 1: Guy 1:Dude! Last night i got that chick so horny, we started tearing it up!
Guy 2: She let you in on her cuddy?
Guy 1: Hell yeah!
Example 2:
Girl 1: I was so wasted last night girl!
Girl 2: I heard you and that guy you met last night at the club were tearing it up at your dorm!
Girl 1: Yeah, i hope he used a condom.
To be incredibly engaged in something to the point where you become almost obsessed or ravenous. This can apply to but is not limited to winning at a game, engaging in sex or eating a pizza.
WowBilly sure is into that pizza. He is really tearin' it up.
Verb: the act of giving a woman pleasure during sexual intercourse to the point that the male causes the female to scream in plesure. Can be applied to the female tearin' up the male as well.
Male: Damn girl your pussy is TIGHT!
Female: AWWWWWWWWWWWW! YEAH BABY! FUCK THAT SHIT! FUCK IT REAL GOOD! AWWWWW! JEEEEEESUUUSSSSS! AWWWWWWWWWW!
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"