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1. NMP
Not my problem. Used in a really, derogatory, off hand way. Used to show that you really don't care. Almost a "I told you so" phrase.
You better go clean that shit up, it's NMP

I tried to tell you she was a ho, NMP.

NMP, you go find the money to pay the shark
2. nmp
An acronym used in text messaging or social networking. It stands for not my problem.
John- "My car broke down."
Eric- "Nmp."
3. NMP
not my president ...
by jw Feb 27, 2005 share this add a video