The head as the proper seat of thought or intelligence. Commonly with allusion to dullness of intellect.

In the form jolt head (also jolt-head)/ˈdʒəʊltˈhɛd/. A large, clumsy, or heavy head; a stupid head. Obsolete.

The head of a fool; (sometimes) spec. a miniature head of a fool (fool, n.1 2) or jester adorning the end of the fool's bauble (now historical)…

= jolthead, n. 1, 2.

colloquial. The head as the seat of the mind or thought (frequently in contexts suggesting emptiness or stupidity).

The head, esp. that of a stupid or foolish person. Now English regional and rare.

A head out of proportion to the body; a large or ‘thick’ head. Chiefly figurative; also in to join, lay loggerheads together. (See also logger, adj.)

With possessive. The head of a foolish or stupid person; the mind of an unintelligent or ignorant person. Cf. cod's-headed, adj. Obsolete.

(see quot. and cf. squirrel-minded adj.).

/ˈdʒəʊltəˈhɛd/ = jolthead, n. 1.

The head, esp. that of a stupid or foolish person. Obsolete.

A head as empty as a fiddle.