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

4GEIT
forget it

CWMAOS
coffee with milk and one sugar

LYLM
Love You Love Me

L4D2
Left 4 Dead 2 (game)