A person who is out of shape, over weight, or unkept. A physically or visually unattractive individual who would resemble a "before" photo in a before and after comparison. The opposite of Afterman.
Wow! Did you see Beforeman driving his scooter around the theme park? He had more chins than a Chinese telephone directory.
Rachel used to date this very hot guy from the city, now she's trolling around with this ugly ass Beforeman.