Top Definition
The male version of a whale tail. When a man's thong underware is hiked up so high, his pants are so low, or a combination of both, that you can see what resembles the sea creature's tail.
D: What is THAT!?!?
J: Ah, yeah that's just a male tail. They're all over the place here.
D: Oh, how fun. Look! That one is neon green!
by Dorth Vadar April 03, 2008

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a penis
my little sister saw my male tail and i kinda liked it.
by pal21more June 30, 2011

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A man, usually a grad student or someone trapped in the 60's, who feels the need to sport his hair in a long unkept pony tail.
(Creepy guy walks by)
A: Ew check out that male tail.
B: Thats so gross I'd pay for a haircut for him
by Kw3stionMark September 26, 2010

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A guy's boxers hanging out of his pants. See whaletail
Hey, look at that dude's maletail, it's gotta be 3 miles long!
by TheBronx December 02, 2009

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The male version of a whale tail. When a man's thong underware is hiked up so high, his pants are so low, or a combination of both, that you can see what resembles the sea creature's tail.
Dorothy: What is THAT!?!?
Joe: Ah, yeah that's just a male tail. They're all over the place here.
Dorothy: Oh, how fun. Look! That one is neon green!
by Dorth Vadar February 12, 2008

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug