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when your arse decides to make the noise that should have left your mouth,after a large swig of stella.
by seanyboy August 01, 2003
Polite method for children to describe the act of farting.
I did a botty burp.
by Toby Butler November 25, 2003
What little girls and boys call a fart. See bottomburp
"My cousin did a bottyburp yesterday!"
"Oh, that's nice!"
by Bastardized Bottomburp March 22, 2003