backfire 

When a guy cums so hard he ejaculates on his own face.

Dude, I thought she was going to swallow but she totes made me backfire!

backfire by QueenLisa December 25, 2007

Backfire-Boulder Toss 

The horrid event that occurs when your woman craps in your bed after you pull out of her ass. The boulder toss part happens when you forcefully hurl the backfire at the rear of her cranium. Very nasty...

"Yeah man when I pulled out and she backfired on my new linens, I picked her fecal matter up and nailed her with it!"

"Wow man, the legendary backfire-boulder toss!"

Backfire-Boulder Toss by Hanzo Steel May 19, 2006

backfire 

When a friend is getting head and his girl/slut decides not to swallow and said friend busts in his face (accidental/on purpose). This act is compareable to spider man shooting his webbing in his eyes.

I think Kyle just did a backfire again.

Gee wiz I can not believe the call him Backfire.

I hope Ashley does not find out about my backfire incident.

He has an issue with the G-Spot, so he tends to backfire.

backfire by Crippler8 February 24, 2008

Backfire 

This is when a guy ejaculates into a girls ass, followed by the girl blowing the load back onto the guy by farting.

Man, you wouldn't believe it last night I finally got to do anal to my girl but she totally backfired in my face, yep rough night.

Backfire by Hydro24 December 1, 2009

Backfiring Bull 

When you (son) and your mum are having anal sex in her bedroom, your dad walks in. You insist him to fuck you in the ass. When he is fucking you, you cum in your mum's ass and she shits all the cum and shit out onto your face. When your dad is about to climax, he cum's on the shit, which is on your face, and smears it all around your body. This is the "Backfiring Bull".

Mum: Son do you want to fuck me in the ass.
Son: (Casual) ye sure, got nothing better to do.
(Mum and Son having anal sex)
Dad: (Walks in) What the Fuck?
Son: FUCK ME IN THE ASS DAD!
Dad: (Casual) sure, why not.
(When son's about to cum)
Son: Lets do the BACKFIRING BULL!
Mum & Dad: FUCK YE!!!

Backfiring Bull by Bob Thompson Jr. September 25, 2011

BackFire 

When you cum in somebody's arse and then after you pull out she farts out the cum and sprays you with it

Oh my you i just got backfire with my girl

BackFire by Wibbles666 July 3, 2021

urinal backfire 

The act of a gentlemen urinating in the urinal , while the urinal spews his own urine back at him .

Me : hey bro i gotta take a leak .

Friend: alright man

Friend (5 mins later) : dude what happend to your pants?!?!
Me: oh yeah , i had some "urinal backfire" if you know what i mean.

urinal backfire by Exotic guy December 3, 2013