When you have to hold in a fart due to being in a public or enclosed space (airplane, subway, car) and the fart rumbles back up into your plumbing. Over the course of several hours, a serious queue of un-expelled farts will build up, prompting an extended cropdusting at the earliest convenience.
Joey: Dude, that 8hour flight from Frankfurt was murder. I musta had about 40 blowbacks.
Chandler: Ouch. How'd you eventually clear the backlog?
Joey: I waited till there was nobody behind me on the slidewalk, and did about 300 feet of cropdusting!
Chandler: Ouch. How'd you eventually clear the backlog?
Joey: I waited till there was nobody behind me on the slidewalk, and did about 300 feet of cropdusting!
by TheRob September 27, 2007
I was fucking this girl and when she pulled out my dick to finish me off she aimed it the wrong way and gave me a blowback.
by DMITCH November 22, 2007
when semen is swilled in the mouth of the recipient, then passed back to the producer of the semen, via oral exchange.
by mrstiiiii April 20, 2009
When someone is performing a blowjob on you, and just as you're about to cum, they put their thumb over the end of your dick. This causes the cum to shoot back into you, usually straight into your spinal column and crippling you for life.
Person A: How did you become disabled?
Guy in wheelchair: I was having sex with a hooker but she did a blowback on me so she could steal my wallet.
Person A: LOL!
Guy in wheelchair: I was having sex with a hooker but she did a blowback on me so she could steal my wallet.
Person A: LOL!
by NickC. September 15, 2010
the act in which a man causes a women to laugh as he blows his load in her mouth, causing the load to fly out of her nose back onto him.
by Superman307 August 20, 2010
The ridiculously overspiked hairstyle typical of the gotti brothers and the associated Gottigays wannabes. It is a fashion statement typically accompanied by fake orange tans and popped collars.
by MK86 November 07, 2008
The particulate matter that is deposited underneath a toilet seat after a person has experience a particularly violet bout of diarreah.
Did you hear Frank just now? Sound like he left a lot of blowback on the seat. Don't use that stall.
by Tom Sanborn September 02, 2006