Entry 2 senses Webster, 1913 Bufflehead · Buf·fle·head · IPA /ˈbʌfəlhɛd/ 01 n. One who has a large head; a heavy, stupid fellow. 1. One who has a large head; a heavy, stupid fellow.[Obs.] “What makes you stare so, bufflehead?” — Plautus (trans. 1694). 2. The buffel duck. See Buffel duck.(Zool.) See: Buffel duck