when a person is of such an obese size that not only do they have one pair of breasts (even if theyre a man), they also have ANOTHER pair of breasts underneath the first pair, hence having four breasts.
That motherflipper was sooo fat he had a quadrabooble!
by Jack ted March 15, 2008
An unfortunate condition in which a woman, due to an over tight bra, appears to have four boobs.
Lauren was quadrabooble yesterday.
by Stephanie Broadchest May 21, 2008