onion fart 

A fart that stinks so bad that it causes the eyes of those unlucky enough to smell it to tear up. Also known to be one of the densest of all farts- it takes about 5-6 minutes for the smell to dissipate.

Gross! Sammy just let out an onion fart!

onion fart by Shawn B. June 27, 2003

onion fart 

A fart that smells particularly of onion. Usually experienced the day after eating a foodstuff containing onion, especially burgers or hot-dogs.

Man, that was one stinky onion fart

onion fart by Kosmos September 3, 2003

Onion Fart 

A fart that hangs around for a long period of time and has multiple layers of smell.

Sorry, I went to Oktoberfest last night, those sausages always give me onion fart the next day.

Onion Fart by Jerff March 25, 2018

bk onion ring fart 

When your fart smells just like Burger King onion rings. Typically happens 6-8 hours after consuming Burger King Onion Rings.

Phew!! BK onion ring fart!! I know that smell ANYWHERE!!

bk onion ring fart by luknoi October 2, 2013

Farting in the onion patch 

The act of sticking a soft penis into thrir parters asshole snd having thrir partner fart until the penis gets hard

Dude what stinks, sorry i was just farting in the onion patch

Farting in the onion patch by Im golf August 26, 2016