Schnoobs: Breasts, attractive or partially visible (or completely visible) breasts of any size. Also, manboobs can be schnoobs, if you prefer.
Usage: "Schnooobs!" Usually a legato pronunciation, heavy emphasis on the "schhhh" so others have an opportunity to check out the scene before the word is completed. Often emphatic.
Schnooblets: Small or even tiny breasts, but cute. I suppose some manboobs can be schnooblets, but you'd never here me say that.
Usage: "Schnooblets." Staccato, usually, often high-pitched. Emphasis on the "oo."
Now you know.