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When the arm is hanging straight down and skin and fat from the bicep area drape down over the elbow and onto the forearm. Almost always seen on morbidly obese women but is not gender exclusive.
Look at all that extra skin draping down, she has a LOT of arm flap.
by Darth Nick March 17, 2004
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May 28 Word of the Day
A goth who has been part of the subculture since it originally came about, or a goth over the age of 40.
by Solinium May 30, 2008
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2
Excessive arm skin or arm fat that hangs down when arms are raised up
That fat torta is flapping her arms like a chicken so she can hit him with her arm flap
by iintentx66 July 01, 2017
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