Stupid or foolish; having a thick or empty head like a bufflehead duck.
Derived from 'bufflehead' (the duck) plus the suffix '-ed,' playing on the bird's comically oversized head to describe someone lacking intelligence.
This is a delightfully specific insult that combines 'buffalo' (suggesting slowness and bulk) with 'head' to create a vivid image of someone's intellectual capacity—it's more whimsical than truly mean-spirited.
Complete word intelligence in one call. Free tier — 50 lookups/day.