The phrase "thanks for playing" is said arrogantly towards someone who you've just proved wrong.
Dustin: "Michael Turner led the league in rushing in 2008"

Craig: "That would be Adrian Peterson not Michael Turner...but Thanks For Playing!"
by cad281 August 30, 2009
Get the Thanks For Playing mug.
Something said after denying, owning, or shutting someone down. The phrase comes from playing games after the game is over, the winner says "Thanks for playing" to the loser.
Jim: Yo dawg that bitch thought I was cute and gave me a free drink.

Tom: For real? She gave me the whole meal free.

Jim: ....

Tom: Thanks for playing.

After the 2008 NBA Finals Kevin Garnett and Paul Pierce turn to the Lakers and say:

THANKS FOR PLAYIN!
by ConsciousHipHop November 5, 2008
Get the Thanks for playing mug.