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.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

the whale tail is the shape formed when a thong or g-string rides up high over a womans trousers

A fashion boom popularized by Britney Spears and Anna Korinkova incorporating hipster jeans and high riding thongs.

A thong/g-string riding up the back, usually while wearing low-rise jeans. Derived from a whale's tail sticking out of the water.

whale tail – the appearance of the top rear strap of a woman’s thong, v-string or g-string underwear above the waistline of her pants, shorts, or skirt whenever she sits, bends over or squats, though some low-rise clothing is now designed to display the whale tail at all times; so-called because the strap closely resembles a whale’s tail rising from the water.

when a girls underwear shows because her pants are too low therefore forming the shape of a whale tail on her behind

1. Thong or g string that can be seen riding up the back, god its beautiful.
2. Big Ass Spoiler put on imported cars that do jackshit to there fwd cars.