1) The inability to except one's real age.
2) Preforming the actions of a young person, regardless of one's actual age.
3) Preforming far past one's prime.
"My dad was skateboarding the other day" - Friend 1
"He is totally Brett Farving." - Friend 2
"David Beckham is so old, yet he still plays soccer" - Friend 1
"He is totally Brett Farving." - Friend 2
