A girl that suddenly gains a massive amount of weight from out of the blue, creating an assumption of preggers, possibly one of a pregnant dinosaur and/or minotaur. Excessive ugliness added to such a state can also lead to centaur allusions.
by Shats Bassoon May 6, 2006
An ugly girl that gains weight seemingly overnight: going from being as ugly as a Minotaur to looking like a pregnant Minotaur: hence Pregnotaur.
by Luis A. Márquez April 19, 2006