jobbernowl
A person's head, particularly if misshapen or blocky.
[She...] bathed his jobbernowl thrice in the fountain; then threw a handful of meal on his phiz …
A stupid person; a blockhead
“And a noodle and a jolt-head; you’re a jobbernowl and a doodle, a maundering mooncalf and a block-headed numps, a gaby and a loon; you’re a Hatter!” I shrieked the last epithet.
Where it comes from
From Middle English [Term?], compare French jobard (“gullible, crazy”) and English noll (“head”).
Adapted from the Wiktionary entry jobbernowl (CC BY-SA 4.0).