Those mysterious clumps and drops of fecal matter that somehow wind up under the toilet rim, or on the bottom of the toilet seat after a particularly exuberant bowel movement.
I often use my urine stream to try to power-wash off the brown blowback collecting in the bowl. Its cheaper than Scrubbing Bubbles and much more fun.
by hooligan0068 October 1, 2012

Buns or pigtails on a sex partners’ head, for which when giving oral sex, when the receiving partner is climaxing, they can use the hair as “handles” to force them closer to climax harder.
by Milky toasty March 24, 2022

After performing oral sex on a male to completion, the act of spitting the semen into the mouth of the one who ejaculated.
Martha sucked on Ron's dick until he spewed his jiz into her fucking mouth. Martha then spit the hot load into Ron's mouth as he smiled with glee. It was Ron and Marthas first Boise Blowback, the first of many.
by Chris Boston September 23, 2006

The act of passing gastric wind directly from one anal cavity to another which is subsequently re-released by the receiver.
The 'fartee' bends over and parts his arse cheeks with his hands revealing a gaping anus. The 'farter' then positions his anus against that of the fartee and breaks wind directly into the fartee's anal cavity. The fartee then clenches his anus shut thus trapping the wind of the farter. In his own time he then releases the fart as if it were his own. The fartee has become the farter. This is a back door blowback.
The 'fartee' bends over and parts his arse cheeks with his hands revealing a gaping anus. The 'farter' then positions his anus against that of the fartee and breaks wind directly into the fartee's anal cavity. The fartee then clenches his anus shut thus trapping the wind of the farter. In his own time he then releases the fart as if it were his own. The fartee has become the farter. This is a back door blowback.
by The Shanners May 4, 2015

The uncomfortable surprise of toilet bowl water splashing upward against your genitals because your feces hit the surface like a meteor.
Today I had the worst case of toilet bowl blowback. Like my poop hit the Yucatan and killed dozens of toilet dinos bad. Sploosh.
by Fozter July 9, 2010

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

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
