What does IMSB mean?
i am so bored
Other definitions of IMSB:
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How to use the term IMSB:
There are no example uses of IMSB at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:
Laughing out loud peeing in my pants
I don't know what to say
Top level domain for the military
Just To Tell You