It's used the same as the standard Your Face,
It's a universal comeback to anything.
But the 'your' is emphasized.

When someone insults you and you haven't got anything to fire back with,
Or even if you're just bored of them and don't want to talk about that topic,
You reply as if they've said something about your face, when it really should be their face.

It originated from a community for an online counter-strike soccer game in australia, but it's making it's way into the real world.
A: Ahhh ya can't pass for shitt!!
B: No YOUR face.
A: Negative. your face.
B: No YOU

(note it's usually not done with capital letters for the your, that's just to demonstrate the emphasis)

A: Did that turn out alright quality, B? I think I had vent running aswell..
B: no your face
C: no your face!!!!!!!!!!!
B: no your face

A: Hey B, we were looking through your computer and C said you have some appalling taste in music.
B: More like no C's face!
A: C says no yours.
B: ..
B: im coming over there right now to kick C's ass.

A: go to bed B
B: no your face
by Tophness October 13, 2008
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This is most commonly used on a school bus from naive students to support their gossip, even if it's literally a frickin' compliment.
"You're dumb."
"Your face is dumb."
by SpeedoThreeSixty December 21, 2020
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This is referred to a person who bull shits i.e he/she claims things which cannot be true
Guy says, I can run faster than cheetah. Girl says, for your face you can run faster than cheetah
by Chindi December 12, 2019
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Commonly used as a diss against someone when competing in an activity in which one will shout "IN YOUR FACE!"
"OHHHH IN YOUR FACE NIGGA, IN YOUR FACE!"-Dave Chappelle
by Lotto23 January 31, 2005
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Greatest of insults. Usable at any time!
J:you're an ass!
A:Yea well... so's your face

G:you arse licker
A:Yea well... so's your face
by Jay December 29, 2004
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A phrase that can be used in absolutely any situation, no matter how average. Derives from your mom.
Person 1: I got an F on this test.
Person 2: YOUR FACE got an F on this test!

Person 1: I saw something scary today.
Person 2: YOUR FACE?!
Person 1: No, actually I saw the boogeyman.
Person 2: YOUR FACE saw the boogeyman!

Person 1: You suck.
Person 2: So do you.
Person 1: Well...your mom.
Person 2: Your face!
Person 1: Your mom's face!
Person 2: OOOOOOHHHH SNAP!
by Lady Pain March 4, 2005
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