Reverse Floor Machine
The act of defecating in the soap compartment of a floor cleaning machine. This causes anal excrement to be sprayed on the floor, as a substitute to the regular soap, when the floor machine is in use.
Anthony: "Did you see the floors? They are brown and smelly!"
Drew: "Yeah, I think someone used a Reverse Floor Machine on them, I would know."
Drew: "Yeah, I think someone used a Reverse Floor Machine on them, I would know."