A male organ, called a penis. A man's best friend, it's the thrilla manilla!
Honey, lay your head right here on my third leg; he won't bite.
by djlongdong April 13, 2004
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A penis so big that it is as long as an average human leg.
Dude 1: Bro, he's got another leg
Dude 2: I can see his third leg.
by Qoulidude July 26, 2022
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"A third Leg" is often a term used to describe a man's large sized Penis.
"Ohh wow I heard he is so large, people say he has a third Leg".
by RabbleRabbble September 9, 2017
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Did you know your penis is an undeveloped third leg, crazy ik... but hear me out.
Joe: Yo, my penis is hard!
Sam: Dumbass, Thats your third leg!!!
by iheart7 February 22, 2023
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In military terms, a male erection. Usually used by veterans and serving members of the military to explain the tent in their camo pants.
I gave that lap dancer a third leg salute.
by DaErYn May 24, 2021
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"I was in Chicago with Robert once. We were in his hotel room and these girls came and banged on the door, all ready for the third-leg boogie, and we're sitting there playing Monopoly."

- B.P. Fallon, former Led Zeppelin publicist, in the December 1994 issue of "Vox".
by Buckiller September 18, 2007
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The patch of hair between a man's legs.

After I fucked the bitch, A hair from my third leg beard made her choke when it got stuck in her throat, so I pulled it out with my cock.

by Ocean Reefer July 27, 2006
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