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To blatantly ignore orders from a superior. Most often used by U.S. Marines (typically NCO's and SNCO's) to describe what younger Marines are doing when should be working. First used by a crusty old devil dog in the early 1900's by the name of Clifton Bledsoe Gates. Gates would later become the 19th Commandant of the Marine Corps.
Listen you shitbirds, get off your asses and quit gaffing me off!!!

But Staff Sergeant, I would never gaff off your orders?!?!
by Gunner Brad May 12, 2010
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to procrastinate or otherwise avoid doing work; to be lazy
When are you going to quit gaffing off and file those casreps?
by Craig 'Pags' Paganucci January 19, 2004
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To ignore a person / task.
Where it comes from: A gaff is a long pole with a hook on the end used to land fish or to keep them away (like a shark, for example).
"I'm going to gaff off visiting my grandmother this weekend."
"I was supposed to meet Britney at the movies tonight, but I gaffed her off."
by PaddyNT March 24, 2006
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