What does STM mean?
smiling to myself
Other definitions of STM:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of STM that should be included here, please let us know.
How to use the term STM:
There are no example uses of STM at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:
Just Always Pray At Night
Government Accounting Standards Board