Pronounced "bee-oobs", byoobs is the scientific term 4th graders are required to use in reference to the upper anatomy of the female body, specifically the chest.
n. The breast equivalent of googly eyes. Think of the eyes on a muppet: protruding spherical orbs that bounce and sway. Googly boobs are rather large (D-cup or larger), have just enough sag to allow them to sway back and forth pendulously, but aren't mushy enough to be described as jiggly.