One of the worst words imaginable. Likened to the three unforgivable curses in Harry Potter. Hearing this word uttered by a student can result in being expelled permanently from the school district. More than three offenses can result in time at Juvy. It's meaning is unpublishable for the previous reasons.
Student: "What the FLACE!? HOW DID I FAIL THE CLASS!?"
Teacher: "GO TO THE PRINCIPLE. WELL, YOU MIGHT AS WELL LEAVE NOW, SEEING AS YOU'RE NEVER COMING BACK.
by mooooooot December 14, 2010
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When you cock-slap someone whilst the penis is flacid.
"Kieran flaced me all night last night!"
by ElChuro August 1, 2015
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A person with a flat face....when viewed side-on they have no distinctive facial features visible to the naked eye.

Also the theme of a little known social networking website 'FlaceBook' (watch this space/flace!)
Person A: Was flace out in echos last night mate?

Person B: Ye fritz got with her!

OR

Person A: What's Fritz's Flacebook status all about??

Person B: Oh yea, me n Reeves flapped him!
by The Makattack February 27, 2011
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When you cock-slap someone whilst the penis is flacid.
"Kieran flaced me all night last night!"
by ElChuro August 1, 2015
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The act of flexing your face muscles when a projectile is approaching the gravitational pull of your face
She was juggling the remotes and I couldn't help but flace because she basically threw It at me, Its okay though she caught it.

She pretend to helping, then she stop and laughing at me cause I was flacing in a funny way
by Rotten_Pancakes August 26, 2011
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The result of a man ejaculating on a woman's face above the eyebrow and semen dripping down, making a lace-like structure. face semen lace ejaculation
Rebecca got flacing on her when she had a rendezvous with Bill.
by Dr. Wolfdick February 29, 2016
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