So.. Eddy's Brother is a "Whaler".

Eddy, in the movie, said that his brother "is a whiz at harpoonin' whales". It was later confirmed that Eddy's Brother is, indeed, related to whales (because his home looks like a whale). This probably means that Eddy's Brother is part of a fraternity in which the members call themselves "Whalers". If I had to take a wild guess as to what it could mean to "harpoon whales" metaphorically, I would guess that it has something to do with being in a relationship with overweight-women. What do you think it means to be "a whaler"?