poopcopter
A circular movement with a sock containing human faeces (ref 'Poopsock') and once in a while spats of human faeces will fly 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
B: Hey look, a poopcopter! Ah, cr*p, poop on my shirt