A byproduct of mud butt. Mud butter is the greasy mix of poo particles and sweat that occurs between your asscheeks when you sweat with an improperly wiped butt.
Excessive heat and humidity makes mud butter worse.
Mud butter can also be produced if someone is suffering from extensive diarrhea and doesn't proplerly wipe clean.
The act of shitting urself, sitting down and massaging it for a while before you sit on an A3 sheet of paper to discover the beautiful butterfly effect.
Whilst try to push out a fart tommy shit himself, whitch inspired his inner artist so he decided to make a mud butterfly