"Wow, he played piano to her on the beach? That's RAF"
"I proposed to her at the startrek convetion. Everyone thought it was RAF"
by am0363 July 21, 2017
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RAF aka Random as F#!k. Used whenever a random act is preformed that is strange to a certain environment.
(you're sitting at your desk at work, a completely dull and quiet office, and suddenly one of your coworkers belts out the chorus to love is a battle field and diligently goes back to work)

You: RAF o.O

Or.

:How was your day today?
:Oh it was cool...but today when I was walking down the street an old lady ran up to me and hit me with a loaf of bread. I smelt like a sandwich all day.
:RAF man...RAF.

:...i know.
by MimiAlexander August 13, 2012
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RAF= Random Arithmetical Function
I'd add, subtract, multiply and divide, and was grateful i had no need to cos, sine or graph functions or whatever gizmo did, because, having been turned down by RAF...
by Lwulf June 27, 2013
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The word RAF means "Retard Ass Fuck". It is most commonly used to describe someone who acts in a stupid manner.

ex in sports.
"hey man could you pass the ball better your playing like a RAF out there"
by Dont You Worry Child April 10, 2013
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royal air force best trained pilots in the world only the second best air force in the world because the usa has more planes.
em none realy cant think of one?
by darkviper July 25, 2005
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Damn that argument was RAF.
That aaron guy is hella RAF.
by Aaron & Sam October 23, 2015
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