A guy who prefers screwing fat chicks, simple as that. Ahab is a reference to the captain of the ship that was chasing the giant white whale in Moby Dick.
That chick was so huge she had her own gravitational force and that guy that left with her had to be an ahab
by Brian H October 25, 2005
While fucking your girl doggie style, you suddenly pull out for no apparent reason. When she turns around for an explanation, she notices you've jumped off the bed onto a skateboard, holding the mighty dildo-harpoon in hand, cocked and ready to spear her in the ass. You pursue her as she runs out of the house and down the street while yelling, "You're not getting away from me this time, White Whale!"
by MC Menses December 02, 2004
Ahab...based on an ancient King of Israel who pissed God off seriously (1 Kings 16:30). Ahab - an asshole or very stupid person.
by Lord Heavyhandz - nEvErMiNdThEbOllOx March 14, 2005
by super troooper February 15, 2009
A refrence made about a overweight girl. But not as big as a beeps. When one has been deemed an ahab, generally the phrase "Grab yon spear" is shouted to tell inform those around of the ahab's presence.
by yourmom April 13, 2004
Someone who owns the Homeworld 1 and Diablo 2 communities like no other game known. He is mean, rude, and basically Satan. Watch for his evilness, as he will crush your pathetic cry baby souls.
by Jesus November 19, 2003