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10.
The act of peeing in a butt.
Dude 1: So I had the sex with that gal last night.

Dude 2: Did you pee in her butt?

Dude 1: Yeah, I gave her the firehose.
by TBM1 April 10, 2009
 
1.
When your fucking a chick in the ass (or doggie style) and you spit on her back so she thinks you came, and you pull out as she turns around and blast her in the face.
I gave this chick a Fire Hose this weekend. She never saw it cumming.
by Stufma Cokiner March 13, 2010
 
2.
A particularly powerful liquid shit, guaranteed to change the colour of your toilet in seconds. Splashback is common.
George: You left for the bathroom last night and didn't return for 5 hours, whats up?
Joe: Ah man, I shouldn't have had that Chicken tikka massala from that corner shop in Hull the other day. I completely firehosed my toilet. I felt like a cat crawled inside my colon, threw up, then died.
George: I'm trying to eat here. Must you be so graphic? Cock.
by banterbus32 October 14, 2009
 
3.
1 n. A length of nylon and vinyl used by firefighters to transmit water from a hydrant to the site of a fire
2 n. A young man in Cincinnati, Ohio whose prowess for drinking is legendary amongst the youth
3 v. To projectile vomit a ridiculous amount
1) Say Sgt. Petaki, hand me that firehose.
2) Firehose just did three cases and a 750 of 151. Jesus tittyfucking Christ
3) The party was going great until Chip firehosed on Lauren.
by PrdgyFrstrtr March 17, 2006
 
4.
An intensely powerful discharge of vomit, characterized by substantial reach and large volume. Commonly occurs after using a funnel to consume alcoholic beverages.
Let's go fire hose on George's car again and tape it this time.
by glenn hayes September 30, 2003
 
5.
When you fuck a chick in the pussy and piss in it.
You Fire Hosed your mom.
by Jake Bisel February 16, 2005
 
6.
The act of a man not masturbating or having sex for at least a week, and then expelling all of his backed up sperm on his girlfriends face or inside of her mouth.
After a long week at my grandma's, I came home and fire-hosed the shit out of this stripper last night.
by AntEnt March 09, 2011
 
7.
When a redhead is giving you head, and your about to cum, you take your dick out of her mouth, cover part of your hole and spray your cum on her hair. Also could be done during intercourse.
Man, me and Julie were having sex last night, and it wasn't anything spiecial, so i pulled out and did the Firehose.
by Patskii August 05, 2007