Definitions by DANTE20XX

Top heavy 

When a girl with large boobs and overall small body size make it seem as if she could fall forward at any given moment or with the slightest push in the forward direction.
Like when an SUV is top-heavy and could topple over much more easily than a lower roofed car.

When a short girl weighs more than the average because of her large breasts in proportion to her smaller body size. This makes it seems as if her boobs are too big for her body.
"Whoa, did you see that top heavy girl? She could fall over any minute now with boobs that big!"

Top heavy by DANTE20XX May 8, 2008