Definder - what does the word mean?

What is bisto fart?

An extremely unpleasant fart that "browns", "seasons" and " thickens" all in one.

A bisto fart is a fart that stains ones underwear like gravy granules, gets stronger in smell and thickens the air as it matures to full strength. A bisto kid is one who enjoys the smell of a bisto fart

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bisto fart - video

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