Bexar County Backfire 

The expelling of gas from a human rectum after said rectum has been filled with air from their partners lungs. Usually performed while tossing salad. Discovered by Sam Mangum circa 1997 in Universal City, Texas. Known for not being a pleasurable experience. Also Known as a Bexar County Backblast or simply B.C.B.

I finally ate that bitches ass and she treated me to a Bexar County Backfire... funky ass bitch!

That Bexar County Backfire was delicious!

B.C.B. again bitch! You better not fart when I blow in yo' ass!

Bexar County Backfire by SamJamesFriend February 25, 2010

prostitute backfire

you give that ho a rim job so good that her o ring breaks and you get (old customers) semen blasted in yo face

"eww fuck i just wanted to try something fresh not get a prostitute backfire"

prostitute backfire by cc collision December 14, 2008

mississippi backfire 

A sexual act of orally inhaling the flatulence out of another's anus.

That bitch is so fine, I'd give her a Mississippi backfire!

mississippi backfire by AHol51 March 30, 2016

german backfire 

When you’re banging someone in the butt in a Volkswagen and it backfires and the person Shits your dick out.

Dude, last night I got A German backfire in my Jetta.

german backfire by Wiiner June 5, 2019

Baby Backfire 

While a woman's giving birth, someone shoves his/her hand into her vagina, pushing the baby back into her uterus.

One: I was doin' this hooker, and she went into labor!

Two: Oh my god, what did you do?!

One: Baby Backfire.

Two: Good man.

Baby Backfire by Justis. January 9, 2010

Blumpkin Backfire 

When you have received so many Blumpkins that you can only orgasm when you smell shit. When people fart you wind up following them around, nose to their ass, and jacking off at the same time. Instead of flushing the toilet after you pinch off a biscuit you leave it there for months, because the more rancid the odor the farther you shoot your load.

Blumpkin Backfire (adj.) "Fuck man I was with this hot slut on a date, and the fat guy next to me farted... next thing I knew I was butt naked jerkin' my turkey and spitting up mayo all over my ho's tank top!"

Blumpkin Backfire by Tyler Breckenridge December 18, 2005

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