An M-string (alternatively man-string) is a type of thong, a narrow piece of cloth, leather, or plastic that covers or holds the cock and balls, passes between the buttocks, and is attached to bands over the shoulders and just covering the nipples for discretion, worn as swimwear by Sacha Baron Cohen's Borat character.
by kayodei December 14, 2007
Get the m-string mug.perhaps nobody will ever know the true intent of these words for they were unsuccesful, but from what I understand, it was a pick up attempt conducted by an ASU frat guy in one of the houses on Pacific Beach to some random girl walking by.
by P.V. treat 928 March 17, 2010
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