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The act of flexing with one arm in a mirror whilst mastrubating in a mirror to yourself. Usually performed by men named Kenny or Thad.
After the party was a flop, Kenny went home to lick his wounds and flextrubate.
by Cooter75 August 06, 2019
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May 25 Word of the Day
someone who is sexy beyond mean
by NiSHA..hit ma aim November 14, 2009
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