Backfarted 

When a male human farts, and the produced gas comes up through the front, bubbling underneath the subjects testicles. The horrid smell gasses the farter, making them severely nauseous, to the point of barfing on oneself.

Oh man! I needed to fart so bad, felt it coming up and decided to let it rip, suddenly I realized, it backfarted! I almost killed myself!

Backfarted by letrollie October 24, 2017

backfart

When you lay on your back on tile and move your back up and down, making a farting noise

Hey let me backfart in your kitchen.

backfart by Noggle123 May 30, 2018

backfailed 

When you can't pull out fast enough to put your load of semen on a girls back.

When Kirkland couldn't pull out fast enough, he quickly backfailed inside of Bri.

backfailed by SantaClausHaha May 22, 2010

backfired 

Verb; An attempt to fix something in which the fixing actually makes the situation worse for you. Common on the internet when an arguement "backfires" and makes you look stupid.

nub 1:My mom is not FAT! See! *insert link*

person 2: Dude! She totally is, your arguement totally backfired on you. Lol, dumbass.

backfired by CommandoDude March 14, 2008

Backfired 

The sound your vehicle makes when you drive a Ford

Hey, did you hear that car backfired, sounded like a shotgun?
Ya must of been a Ford

Backfired by Hambone008 June 7, 2017

Backfired Fart

a belch or burp

My friends an I have a backfired fart contest to see who can break the record for the longest and loudest backfired fart recorded in history.

Backfired Fart by minnie555 January 26, 2010

backyarded 

vrb:awesome trick ,point ,etc that you performed but no one saw

guy:OMG!!I pulled a 1260' on this tiny ramp!!!
dude:I didnt saw u

guy... totaly backyarded.

backyarded by Mr.mister November 6, 2012