Definitions by $immons

POMC 

An inclusive act whereby the consenting recipient of a rearguard action is politely asked to expel the intruding member using a time-honored mechanism.

Acronym formally coined during the late 1990s in the UK.

Person A: POMC, if you don't mind.
Person B: Certainly.

POMC by $immons March 15, 2010