A massive and foul smelling fart that comes out with such force that you feel like your insides have been cleaned out.
(said in the famous Klump dinner scene #1 in the Nutty Professor (1996).
"You want your colon cleansed?"
"Fine I'm gona clean mine."
"There now my colons clean I'm taking squeaky clean."
"I gave myself a good colon cleansing right before entering the car." "However the nasty ass smell still stunk up the whose damn vehicle."