Blowbrace 

A locking hold he/she cannot remove themselves from whilst receiving a good old fashioned blowjob.

I gave her a blowbrace that she screamed through and struggled to try and get out of; all whilst loving it at the same time

Blowbrace by dannyzz July 29, 2017

Back Door Blowback 

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.

Hey Dude, I gave that bird a stonking back door blowback the other night, it fucking reeked!

Back Door Blowback by The Shanners May 4, 2015

Toilet Bowl Blowback 

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.

Toilet Bowl Blowback by Fozter July 9, 2010

blowface sandwich 

When finished busting a load on someone, one proceeds to take two pieces and bread in which they scrap the remains onto the bread and feed it to the recipient.

Imma give you a blowface sandwich

blowface sandwich by 9r3w9r3w0 October 21, 2009

fecal blowback 

Microscopic, particulate matter expelled from one's anus during flatuent activity, usually confined to one's underwear if such garments are in fact being worn, though its infinitesemal size can still disperse into the surrounding air regardless of the presence of protective garments thus landing on your peanut butter and jelly sandwich.

Johnny ripped a huge fart when his girlfriend, Carmen, was talking on the phone and she did not realize that his fecal blowback landed in her Cesar salad.

fecal blowback by Professor Rizzle March 19, 2010

Oreo blowback 

When you cum in the anus and they fart the cum and poo back on you looks like a crushed Oreo

Anal sex Oreo blowback

Oreo blowback by ASH9LONDON January 27, 2014

blowback 

To hold a marijuana joint in ones mouth between the lips with the hot end in the mouth while blowing smoke out of the hole at the other end into someone else's mouth, so as to get a big 'hit'

'Give us a blowback!'

blowback by Anonymous July 1, 2003