Wiktionary
dumb blondes
n. (dumb blonde English)
Wikipedia
Dumb Blondes
The Dumb Blondes were an English glam rock band.
The band went through two line-ups, both featuring singer Jeff Hepting and bassist Pete Webb. The first line-up also featured current Def Leppard and Man Raze guitarist Phil Collen and drummer Fred Ball. The second line-up featured guitarist Paul Mason, keyboardist Andy Tompsett, and drummer Graham Garrett.
Usage examples of "dumb blondes".
Instead she specialized in playing dumb blondes with spectacular bodies.
He reminded me of the dumb blondes who had cluttered up the California landscape when I was his age.
Rodden shook his head gloomily - he hated talking to dumb blondes.