1 definition by brian kessel
If the term Mail it in originated from the movie, Van Wilder. It has evolved to be used more so in sports now. When a team actually has a chance or shot to win or contend, and they don't even put forth their best effort. Or perhaps settling for par in a quarter to save someone for later in the game or in 1 game in a series of games, or in a playoff stretch. When a team or manager doesn't believe they have a chance, but the fans or players actually do, and a critical decision is made that pretty much lets everybody know.
Fan,"They are only 4 games out with 2 weeks left, and Griffey isn't even the lineup, I can't believe they mailed it in".(the season) Fan,"bottom of the 9th, up 1 run, and you don't bring in the stud closer because you used him last night,they are mailing it in". "The manager is goin to mail it in".
by brian kessel September 20, 2006