Youth Digger

Similar to the infamous Gold Digger, these are older people (usually older men) who are on the prowl for young people to date, and most often have a pattern of doing so. Youth Diggers are attracted to the naïvete and easily exploitable nature of young people. They'll usually waste their youthful years until the young person ages out of their preferred age range.

Person #1: Did you hear that Jesse got married to a 19 year old?!
Person #2: Yeah, motherfucker is pushing 40, what a youth digger!