Top Definition
Military slang for getting assigned to Fleet Assistance Personnel. Basically it's when your unit is required to temporarily send X number of warm bodies to do menial tasks for the base or the squadron or something, and you're picked to be part of the group. Occasionally a cool gig and a welcome break from routine, but a lot of the time it's something godawful and involves Twentynine Palms or the term "grease trap". Usually assigned to new arrivals as a rite of passage, and to shitbags that aren't wanted in their unit
"What happened to Johnson? I haven't seen him in ages."

"He kept fucking up so he's been fapped out to 990 for over a year now."
by jake5443 December 04, 2007
When a man has masturbated all day to a point where their genitals hurt and they can't busy anymore nuts.
"I was fapped out by the time I busted my 9th nut."
by James DeLarge May 13, 2014
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