Top Definition
A phrase indicating that one doesn’t care about someone’s problem, and feels no responsibility to help fix it. Often used to disguise the fact that while it’s not your problem, it *is* your *fault*.
example 1 (disguising fault):
“Your slanderous article has ruined my good name! I demand that you retract it.”
“Not my problem.”

example 2 (not one’s fault):
Right as I was leaving the building after quitting my sysadmin job, I heard the servers go down again. I didn’t turn back. It was not my problem any more.
by roryokane September 23, 2013
2 Words related to not my problem
Your problem...
a: My girlfriend has run away with some shortarse, chav gobshite from Chelmsley Wood! What should I do?

b: Not My Problem....
by nutwiss December 11, 2011

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