I heard this in this movie.
It was my op.
What does it mean?
Googling gave me : 'Original Poster'.
But that doesn't seem very meaningful.


"Op" is short for operation - in the context of your link, most likely of a military nature. The character was basically saying "It was my operation (mission)."

Definition from M-W online:

6 a : a usually military action, mission, or maneuver including its planning and execution

  • @MD.MohiuddinAhmed Just to be clear, op can be - and very often is - used to refer to a surgical operation (at least in British usage). So please don't think that op usually refers to a military operation (although I'm not disputing that that is the most likely usage in the quoted context). – TrevorD Jun 9 '13 at 13:25
  • @TrevorD, thanks anyway but the OP didn't ask about the definition of the word "operation" which would be off-topic for EL&U and really general reference. :-) – Kristina Lopez Jun 9 '13 at 13:32

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