1.A male that goes out to a bar and ends up going home with a fat chick( see whale).
2. The leader of a group of dudes trying to pickup fat bitches on a bar.
Tom: Oh no! He is such a Captain Ahab!
2.Someone who really likes whale sized women.
3.Refers to his boner as a harpoon.
4.Uses ham for cologne.
That chick must be like 500 lbs. I'll bet Captain Ahab would love her.