The enormous rear spoiler found on some classic Porsche 911 race cars.
That '74 Carrera RSR has a badass whale tail.
by Bundo August 17, 2005
The act of fucking a girl so hard, from any position, so long as the balls smack the female to the point that there is an unmistake, audible, and loud skin on skin popping sound resembling the sound of a breaching whale's tail smacking the water.
"Dude, I completely whale tailed that girl from the bar last night"
by buns3 August 23, 2009
A camel toe for guys.
That guy is sporting a huge whale tail
by nessafox October 05, 2009
The visibility of a woman's thong through her pants.
That woman needed some darker pants, because you could see her whale tail right through them.
by Zac Weldon July 10, 2007
A patch of chest hair that goes across the top from nipple to nipple and tapers off to a point in the middle.
Look at that dude's whale tail! We should've drawn the rest of the whale on his stomach in stead of that big swastika. Oh well, he'll laugh anyway.
by fmuncher July 10, 2008

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