A term used to describe girls, usually big breasted women who are wearing a bra that is too small for them so it looks like they have four boobs.
I bought a bra the other day and thought it would be good to wear to the club, but i started dancing and noticed I had quadraboob. My nipples were hangin out.
by Les Is More January 9, 2006
When a larger breasted females bra fits incorrectly and the boobs fall out of the bra giving the illusion of four boobs.
by devildriver6969 December 16, 2009
by lanieree November 3, 2010