What does APO mean?Authorized Personnel Only
Other definitions of APO:
All of our slang term and phrase definitions are made possible by our wonderful visitors. If you know of another definition of APO that should be included here, please let us know.
How to use the term APO:
There are no example uses of APO at this time. We would greatly appreciate your contribution if you would like to submit your own!
More slang terms:
International House Of Pancakes
Right Outta My Ass
as if not