Any number that people call all the time because a character in a song or movie dials it. Originated from the song "867-5309/Jenny" by Tommy Tutone.
Eric: God damnit, I hate that new movie that just came out. I'm getting calls every 5 minutes because I have a damn Jenny Number.
Sam: You should change your number, man. They won't stop. Besides, doesn't your daughter have the same name as the woman in the movie?
Eric: Yeah, I never know if they really want to talk to her or not anymore!
Sam: You should change your number, man. They won't stop. Besides, doesn't your daughter have the same name as the woman in the movie?
Eric: Yeah, I never know if they really want to talk to her or not anymore!
by Hextacy October 5, 2007
Get the Jenny Numbermug.