The result of millions of hamsters being released into the New York subways and mating with the enormous rats to create a new breed of super-rodents. The new breed's designation is determined by which one is the "bitch" with "ramster" being the rat in the dominant position. See also hat.
Upon entering the ramster store, the old man's right foot was voraciously bitten off by a mob of angry hats.
by Sidewinder September 16, 2004