act like you've been there before(redirected from act like you have been there before)
act like you've been there before
Don't gloat or showboat when you are successful, especially in sports. The phrase is usually attributed to famed American football coach Vince Lombardi. That dude goes crazy every time he scores a goal. It's like, come on—act like you've been there before.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.