When the firebox door of a steam locomotive is opened in a tunnel, with the blower on. The action of opening the firebox creates negative pressure in the cab, thus forcing the contents of the firebox into the cab (coal, fire, etc) usually resulting in the deaths of the crew.
by ShitDemon01 December 30, 2020
Get the Fatal blowback mug.It’s this thing you can get from a chick when they give you a handjob. What happens is, they’re wanking you off, and then just as you’re about to blow your wad, they put their thumb over the end of your knob. If you’re really unlucky, the sperm flies straight back down your tubes and knocks out your spinal column
by Homie3794 July 4, 2019
Get the Blowback mug.Definition:
A reckless mission involving internal deposit, gas-powered launch, and airborne return-to-sender — ending with a mouth-to-mouth payload exchange.
Summary:
One cums in. The other farts out. It lands in your mouth. You spit it back in theirs. Mission complete.
Warning:
Not FDA-approved. May cause intimacy, nausea, or spiritual confusion.
A reckless mission involving internal deposit, gas-powered launch, and airborne return-to-sender — ending with a mouth-to-mouth payload exchange.
Summary:
One cums in. The other farts out. It lands in your mouth. You spit it back in theirs. Mission complete.
Warning:
Not FDA-approved. May cause intimacy, nausea, or spiritual confusion.
by BlowerBob July 18, 2025
Get the Operation: BLOWBACK mug.an anal and gastrointestinal phenomenon characterized by an initial sudden knee-buckling writhe in one's stomach requiring immediate restroom escort, in where one's very own belligerence and will to live will endure no less than 30 minutes of exposure to a chasm of pain so entrenched from one's normal everyday awareness that when one has fought themselves loose from its anchoring constipation, one will find their life's impurities and anxieties for failure curled and concentrated under them into a tame and flushable dud; queuing the impetus to a refined and cleansed existence
Oh, him? We were talking just now, but he had to make a run for the loo; he was feeling blowback coming on. He might just come back here either preaching us the gospel or dragged out on a stretcher.
by s-t£ May 21, 2024
Get the blowback mug.The vengeance that consists of getting blowjobed by your bully's mother and sending him the pictures: Blowback.
Remember that bully Gerald in high? I Blowbacked him so hard he and his mother will never get over it
by FranckSYmal August 25, 2017
Get the Blowback mug.When smoking drugs on aluminum foil one exhales their hit into another’s mouth,with the hope that nothing is wasted and you get the maximum high possible.
by KravenMorehead December 10, 2019
Get the Blowback mug.Blowing smoke into another persons mouth after collecting smoke in the mouth without inhaling. The mouth is being used like a bong and looks like the two people are kissing.
by Ze define September 21, 2022
Get the Kissy Blowback mug.