Its is a scale - generally used for the measurement of the wetness and/or lumpiness farts - It is based on a simple 1 to 10 Scale
There is a direct correlation between mud factor and skid marks.
Jimmy was horrified when the small silent fart he tried to squeeze out while on the train hit mud factor 10.
To commence farting as you start walking down a hallway or passage - trying to make the fart last all the way to the end. Ensures a consistent unpleasant experience for any followers
Man! - I just followed the longest fart train ever - its was awful!
6👍 2👎