bottom burp 

Emission of noxious gasses from the anus, most common on the morning after a lager and curry fest

Nigel was so nervous he bottom burped throughout his first date.

bottom burp by Wolly November 1, 2002

Bottom Burp 

A posh way to describe a Fart.

Oh dear, i seem to have released a Bottom Burp

Bottom Burp by Badgertron March 22, 2011

bottom burp 

a fart u dumbasses its pretty obvious

ill bottom burp u to mars

bottom burp by zara bee March 3, 2003

bastardized bottomburp 

A definition writer on urban dictionary who seems to have spent his entire life posting definitions.

bastardized bottomburp has written about ten million definitions.

bastardized bottomburp by Jon Hazell September 20, 2006

bottomburp

an emission of heavenly gas (deadly to those on the receiving end of it) which leaves a searing mark on the ground of wence the giver sat.

"I did a bottomburp!"

"You did a bottomburp!"

"We did a bottomburp!"

bottomburp by Bastardized Bottomburp March 17, 2003

bastardised bottomburp 

I think he is Australian and has added about 750 words. Only Diego has added more definiton's.

Bastardised Bottomburp is one of the urbandictionary kings. Except some of his words are quite shit.

bastardised bottomburp by Diego September 28, 2003

bastardised bottomburp 

Forget 'king', this guy's one of the elite! His stuff's gold!

bastardised bottomburp by RatchetBoo October 6, 2003