the.com/cheeks
The face's most blushable real estate, or the body's other, rounder set entirely.
means The fleshy sides of the face below the eyes, or, by cheerful extension, the two halves of the buttocks.
from From Old English ceace, meaning jaw or jawbone, which slid downhill anatomically over centuries until it covered both ends of you.
Built to blushCheeks redden from adrenaline widening facial blood vessels.
Dimple geneticsCheek dimples are tiny shortened facial muscles.
Cheeky meaningCheek long meant impudence, hence cheeky upstarts.