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when you reach a point of total exhaustion or fatigue.
I hit the wall around 3 yesterday. I had a couple of hours left to work but I just wanted to go home and crash.
by hipster August 07, 2010
The point at which a girl that used to be hot, is no longer hot. This is typically due to advancing age.
Heather Locklear has finally hit the wall. She must be over 40 now.
by Jack Goff May 30, 2006
when a girl becomes officially ugly
That girl hit the wall.
by anon January 26, 2004
1) To have sex. (Meaning to hit the walls of a woman's vagina with your penis.)
"What did you do on your date last night?"
"You know me, I hit the walls all night!"
by cannot8 March 25, 2010
The point you get to when you can't drink any more booze or smoke any more dope and just need to pass out.
Man I got so mashed last night that I hit the wall at about 3am!
by Nitram May 26, 2004