Acronym for "thanks so much". One of those expressions that, depending on how used, can be sincere or sarcastic in its meaning. To further confuse, can be used in both lower and upper case.
Sincere: "Hey man, looks like we were gonna run out of booze tonight after all! TSM for bringing that kegger, dude!"
Sarcastic: "I TOLD you I wasn't using birth control!! TSM!!!"
Uncertain: "Great birthday present, Harvey. tsm"
Sarcastic: "I TOLD you I wasn't using birth control!! TSM!!!"
Uncertain: "Great birthday present, Harvey. tsm"
by Dishpan Hanns October 15, 2009
Get the TSMmug. by tsmlovers January 23, 2010
Get the TSMmug. TSM is trash xD
by Chooch your doo doo brother  November 13, 2018
Get the TSMmug. by pricee April 17, 2008
Get the TSMmug. by trickyricky123456789 November 3, 2016
Get the TSMmug. 
Get the TSMmug. 