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1.
The act of gripping a common whore's thong, otherwise known as a whale tail, pulling back the zebra printed, lace fabric, and allowing it to snap against her dimpled whore ass.

This creates a loud smack, not unlike a large whale slapping its tail against the surface of the water.
As seen on ID's "Deadly Women" reanactment of a steamy affair.

Man: Come here, whore.
Whore: Oh, I'm gettin' all steamed up. I've got my whore panties on.
Man: Yeah, let me hear that.

*CINCINNATI LOBTAIL* SMACK

Whore: Oh, baby! Let's get all humpbacked on my husband's futon.
by Cincinnati Whaling Association February 01, 2013