1 definition by Phil Bob

Having doggy style sex with a fat girl. Upon ejaculation, the male shall be referred to as Captain Ahab, and whichever one tells the story with more dignity shall be called Ishmael.
Greg: Dude I heard you banged a fat girl last night
Craig: Yeah dude, not one of my better nights
Greg: What position were y'all in
Craig: Doggy
Greg: Dude you have to stop doing the humpback whale
Craig: I also finished
Greg: Way to go Captain Ahab. Let me know if you see Ishmael again.
by Phil Bob February 18, 2014
Get the Humpback Whale mug.