Short for Mother-Beeper" Generally used as another word for [Mofo] or [Mother Fucker] In some songs played on the radio, bad words are "beeped" out so put Mother w/Beeper and you get Mobee. It's a G rated way to say Mofo since some people(ie. parents, teachers, little old ladies) don't like when people say that and it's an easy way you can call someone a mofo w/out getting in trouble at school or in front of your parents.\n> Some guy: "Sup ladies, wanna have a good time?"\n> Jenn speaking to everyone:"Do you guys know him?"\n> Jessica: Ew, no, he's creepy.\n> Kellie: "yeah I've seen him at the gym he's a major creeper."\n> Mallori: "Uhhh, he's staring at us again."\n> Some Guy: Come on ladies, I know you wanna party w/me, I'm hott.\n> Cathy:"Why is he talking to us still?\n> Kasey to Cathy: "Obviously he's a cocky little shit and thinks he can get whatever he wants."\n> Allison:"Dude, he's really staring and I think he's coming over here."\n> Some guy:" Ladies, I asked if you wanted to party, I mean who wouldn't wanna party with me ya know, come on I want some bitches."\n> Jessica to some guy: "We don't even know you."\n> Some Guy: "I just want some bitches to come to the party man. You'll 18?\n> Kasey:Dude, let's go, this guys a fucking creepy ass mobee"\n