Having one's anus forcefully, repeatedly and not-always-voluntarily resized. Size
9ing is most often performed courtesy of one's new
cellmate's johnson, although at some parties, a proper
piss-on / pass-out may elicit the act.
Guy 1: "Why is
Shiela walking all funny?"
Guy 2: "She got Size 9'ed after passing out
face down on the couch at
Bob's party."
