The act of smoking an entire blunt on your own.
Bra, I'm finna face up this loud blunt.
by BCashKy859 July 14, 2016
the face u make when you eat something really sour or nasty; thiz face
man i couldn't help but face up when i tasted those sour skittles
by africaliberia March 7, 2009
Someone who his hooked on those games you play on facebook; When you throw up from being on facebook for too long.
-" Garret's been playing those stupid facebook games for hours!"
-" dude, hes faced up"

-"Mom, better check on bobby, he was on facebook for too long."
- "Oh crap, he didn't face up did he?"
by Dog eats God January 27, 2011
when someone signs off of Facebook intentionally in the middle of an intense chat or fight to add dramatic effect and/or show how mad they really are

like hanging up on someone during a call
Facebook Chat 1:
John: Ok, I'm sorry.
Jane: Whatever.
Jane is now offline

Facebook Chat 2:
John: Dude I apologized to Jane and she just signed off
Bob: You totally got faced up on, man.
by yourmomdotcom. March 23, 2011
To ejaculate on another person's face.
"Girl, you lookin' good tonight, couple more drinks and I'm gonna paint that face up."
by BigLue February 12, 2010
The act of using facebook as an excuse to hit on someone. Can be used with true information and false, see example below.
A guy is telling his friend his latest face up line:

Guy 1: 'Hey, are we facebook friends? I think I recognize you from my news feed.'

Guy 2: 'Did it work?'

Guy 1: 'Yeah it worked. That's a classic face up line right there.'
by Nolagrrrl May 9, 2009
Facing the fact that you've gone from reading a book in print to online in a few easy steps.
Isn't it about time you started confrontationally facing up to reality?
by Hercolena Oliver July 11, 2008