What is Tsm?
1.
Thanks so much or Thanks very much
email received "Here's the ______ you wanted".
Reply "TSM"
See
2.
total sid move : when a person (usually a friend or acquaintance) does an action that usually results in you ending up with less food, or is in general a TBM (total bitch move) that shows the TSMer's cheapness or lack of empathy for what they are taking from you.
John : Hey look, my mom saved my very last piece of my father's birthday cake for me!
Sid : eats cake
John : Ah! You fawk! What a TSM!
See