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.
by Shawn B. June 27, 2003
 Get the onion fartmug.
Get the onion fartmug. A fart that smells particularly of onion. Usually experienced the day after eating a foodstuff containing onion, especially burgers or hot-dogs.
by Kosmos September 3, 2003
 Get the onion fartmug.
Get the onion fartmug. by Jerff March 25, 2018
 Get the Onion Fartmug.
Get the Onion Fartmug. When your fart smells just like Burger King onion rings. Typically happens 6-8 hours after consuming Burger King Onion Rings.
by luknoi October 2, 2013
 Get the bk onion ring fartmug.
Get the bk onion ring fartmug.