a crease in a shirt formed after defacting by holding up the
bottom of
one's shirt against their chest with their chin to keep it off of the seat. Often a clear indication of a number 2 being performed as opposed to a number
one.
Guy 1: Man, Gordon's been in the bathroom for a while
now, there's no way he's taking a piss
Guy 2: There he is now, and yeah you're right, you can see the
plop pleats on his
shirt
Guy 1: He always f****ing stinks up my bathroom!