fly speck
Terminology used by middlemen. A quote "Buzzword" unquote.
Fly-speck blue
The light-medium blue color of old porch ceilings (before air-conditioning) said to keep flies from landing and depositing their tell-tale spots.
It was cool and peaceful on the porch, swinging, gazing up at the freshly coated fly-speck blue ceiling. I fuzzed my eyes and imagined clouds floating by.