Definitions by xXmizzcupcakeXx

pre-boob 

The area of the chest right before the boob, slightly before the slope. Not the actual boob or the slope, but very close.

girl 1: Sorry am I laying on your boob?
girl 2: No it's just my pre-boob

pre-boob by xXmizzcupcakeXx January 26, 2011