What does OPP mean?
A snitch
Other definitions of OPP:
- Other People's Problems
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How to use the term OPP:
There are no example uses of OPP at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:

BTAIM
Be That As It May

IR
in room

YIM
yahoo instant messenger

TFY
time for you