What does HSR mean?
homestar runner
Other definitions of HSR:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of HSR that should be included here, please let us know.
How to use the term HSR:
There are no example uses of HSR at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

O/P
Out of print

LYSFM
love you so f**king much

DEY
They

IMHE
in my humble experience