Top Definition
A non-verbal sound produced by the vibration of the lower lip against the tongue using air either exhaled or squeezed by the cheeks. It is denoted frequenty in text conversations (either interactive or offline message protocols) as 'thppppt'. The number of "p"s indicates severity.
You don't frighten us, English pig-dogs! Go and boil your bottom, sons of a silly person. I blow my nose at you, so-called Arthur King, you and all your silly English k-nnnnniggets. Thpppppt! Thppt! Thppt!
by jonathan August 09, 2004

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a sudden explosion between the legs
oops! im sorry! i seem to have just encountered a bilabial fricative
by bill pickles March 02, 2011

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n. The air turbulence that comes out of your butt. A fart.
Smells like a bilabial fricative.
by ColaLola September 25, 2009

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Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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Buy the t-shirt