act like you've 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. Yes, we know you can dunk, now act like you've been there before. Act like you've been there before, because one day, you'll be on the losing end of things.
See also: act, been, before, like, there
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
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