A circular movement with a sock containing human faeces (ref 'Poopsock') and once in a while spats of human faeces willfly out, colliding other objects in the vicinity.
A: W00t, Look I'm a poopcopter!!! GOING round and round.
B: Hey look, a poopcopter! Ah, cr*p, poop on my shirt
Scotty: "Hey Mr. Jenkins, I went down on your daughter last night to discover she has a bad case of poopcooter, I think maybe Mrs. Jenkins should teacher her to wipe front to back."
Mr. Jenkins " Oh! so that's why she tastes just like her mother!"