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8.
It is the facial expression of a person during sexual intercourse and especially during climax/ejaculation.
It can also be known as the face that a certain person puts on when around someone they are attracted to.
I better get my game face on, she is so hot right now....
by dails May 05, 2004
 
1.
#1) a confident swagger you bring out when you are about to get ready to tackle something difficult, or when you are about to take on a challenge. Or when you are getting ready to get down to hard business.

#2) When you are ready and pumped up to party really hard.
#1)
Person1: "Tomorrow's your job interview, right? Are you ready?"
Person2: "Yea son, I'm bringin' out my GAME FACE."

#2)
Person1: "You're turning 21 tomorrow. Time to hit the bars and black out, so be ready to bring out your GAME FACE."
by bubbacheesus April 29, 2009
 
2.
1. that ugly look on your face when your really into a game basketball; in the zone

2. making a ugly facial expression on purpose
1. DAMN, that dude rite der must be really playing, got his game face on and everything.

2. Yo dude, do your game face.
by koodang February 21, 2005
 
3.
the action of an individual applying a demeanor which conceals the apparent level of said persons intoxication in an attempt to enter a licensed establishment.
ant- "ohhh, we're never gonna get into this joint"

matt & john- "quick ant, put your gameface on! we've had ours on for the last block just in case!"

-

"ok guys, we're here.. gameface"
by m sid March 27, 2010
 
4.
A state of mind or demeanor that one has when they are ready to party. If you are ready to party, you have your gameface plastered on, and if you aren't you have it stashed in your pocket. A group of people who are always ready to party might be nicknamed the "gameface girls" or "gameface guys"
If you call a friend and ask them to go out, you might say.."is your gameface on tonight, or is it in the pocket?" And they would reply "my gameface is plastered! come pick me up!"
by Lindsay January 24, 2005
 
5.
When being approached by a member of law enforcement. Usually said when in the presence of a paranoid individual... when riding dirty and the smell of bacon is detected
* sniff * * sniff * you smell bacon? dude, game-face
by BrownTown1 November 03, 2009
 
6.
It is where you put you collar of your shirt over your nose and mouth and concentrate on what ever you are doing with everyone trying to distract you but it doesn't work...
I wear my Gameface when ever i am sitting down.
Me playing "MAPLESTORY" or "C.O.D - 4"
by BIGxGOON April 22, 2008
 
7.
The face you make when having sex.
Guy: Her Game Face was so nasty eventually I just put a bag over her head.
by WillisTheRizznapper July 08, 2010