A man who is being seen on the side by a woman who has another man who is her boyfriend.
Lady, running down to the riptide
Taken away to the dark side
I wanna be your left-hand man

--Vance Joy, "Riptide"
by purplebackpack89 August 18, 2014
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1. In a wedding party, the next ranking groomsman after the best man. Often the X-factor at the bachelor party, and wedding reception responsible for turning things up a notch.

2. On a gang or team, the third ranking member. Often a wild card or tough guy.
"After winning and then losing 3 grand at the blackjack tables, I brought a couple strippers back to the bachelor party suite, and finished them both off. Just another night glorious night as a left hand man."

Historical examples: Mr. T in The A-Team, Zach Galifianakis in The Hangover, Dennis Rodman on the Chicago Bulls, Raphael from 'Teenage Mutant Ninja Turtles', Will Ferrel in 'Old School', Booger in 'Revenge of the Nerds',
by buster chestnutz March 28, 2010
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v. the act of manipulating the mouse with your left hand while you beat it to pr0n with your right. pwn
My wang is so tired because i was left handed surfing last ngiht.
by sneak hit master October 27, 2004
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a hookers selected hand that they use to pleasure fat, ugly, bald, lazy, men who cant get any for themselves.
clay hazams left handed doflinky is his left jerked of barney wile jackhammering santa claus while receiving a angry rim job.
by john stodderd May 21, 2008
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Last night my hable suddenly escaladed into a left-handed handy, which brought me to tears.
by Bruce Goosen August 10, 2006
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I want to be a partner with you. Before medical science discovered how the circulatory system functioned, people believed that a vein ran directly from the fourth finger on the left hand to the heart. Because of the hand-heart connection, they chose the descriptive name vena amoris, Latin for the vein of love (get your mind out of the gutter, I am saying LOVE), for this particular vein. That is why the fourth finger of the left hand is the ring finger, indicating commitment. In Jance's song I believe he is talking about wanting to marry someone.
Will you be with me forever, I want to be your left hand man.
by Phronimon December 13, 2014
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Leroy whooped out his left-handed banjo and scared off all the bitches.
by MamaCA December 15, 2006
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