What does TSR mean?
Totally Stupid Rules
Other definitions of TSR:
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How to use the term TSR:
There are no example uses of TSR at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

RBTY
right back to you

JG2H
just go to hell

ICIC
I See. I See

BBIAW
Be Back In A While