look up any word, like yeet:
 
2.
A program that defends your computer from malicious users accessing and using your computer either as a port to someone elses computer or to totally mess up yours :)
My firewall kicked that hackers ass last night
by Urban-k September 02, 2003
 
1.
A geek's condom; Helps prevent viruses
Remember to practice safe hex and use a firewall!
by Daniel March 24, 2005
 
3.
When a man with red hair spreads his excess scrotum skin over the face of a woman.
"Chris, I want you to strap me down and firewall me"

"AHHH, You're suffocating me with your firewall!"
by Brock, "Dirty Sanchez," Otten October 04, 2007
 
4.
Any of a number of security schemes that prevent unauthorized users from gaining access to a computer network or that monitor transfers of information to and from the network.
My Firewall pwns your face.
by Deceptik0n July 12, 2005
 
5.
1. STD-infected female genitals.
Don't screw her...that bitch got a firewall.
by CNJACL September 10, 2010
 
6.
A burning sensation at the end of your penis that prevents pissing
Dude I had to go piss last night but I had a firewall
by musclecarboy247 September 12, 2011
 
7.
The best tool to prevent windows from accessing the activation server and disabling your version. Also it prevents windows from using your bandwidth to download useless "updates".
The firewall totally stonewalls the windows activation processes !
by chemical_processes May 24, 2010