A fart that happens when somebody is sitting on a shitbowl and they decide to cut the cheese.
Farting while sitting on a toliet causes the fart to be amplified by the bowl and gets a bit of reverb action going as well for the same reason.
{John}: Jesus! Mary just cut a toliet fart!! You can hear the fucker halfway down the block!!!
by Telephony February 12, 2015
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