DPMO is the easiest way to
tell someone not to piss you off via text message, twitter,
facebook etc. directed towards a specific person. acronym for
Dont Piss Me Off.
can be used also with a stale face
Kianna:
Tina, I had a date with Derick last night
Tina: I thought you said he cheated on you??
Kianna: I know, but now i forgive him.
Tina: DPMO.