Deb(s): a typical female beauty. Very common, mostly blonde, boring, and possibly missing a brain. They come a
dime a dozen and often in trophy form: the female version of a Chad.
The name is used normally in
insulting context, which embodies a woman's character as an idiot, air-head, moron, typical, banal preppy, etc. (see
examples)
Deb is short for Debbie, Debra or Debera (a once very common name for such women, which is how it garnered its term). This slang dates back to the '50s.
All he does is date Debs.
This beach is filled with Debs.
She's a total Deb.
Look at those Debs
over there, yaking like chickens near Mr. Chad's class.
Hey, Debbie. Oh, hey, Debbie. What's Debbie doing
over there talking to Debbie?