Ur Mom Share definition Flag A bitch who is your mom. everyone makes jokes about you fucking her and that nasty stuff. When they are not doing that they are making fun of them. Like calling them fat or a pig. Guy 1. Ur mom.Guy 2. What about her?Guy 1. I fucked her last night lol.Guy 2. ...sure you did. Ur Mom by Tony-Chan February 16, 2022 0 0 Get merch Get the Ur Mom mug. Buy Now — $32.95 See more merch