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

= jolthead, n. 1, 2.

A high peaked head; = cop-head, n. 1.

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.)

A big head; a person with a big head.

/ˈdʒəʊltəˈhɛd/ = jolthead, n. 1.

depreciative. A person's head likened to a potato, either in appearance, as being large, bald, ugly, etc., or as implying stupidity.

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

= jolterhead, n. 1, jolting pate n. at jolting, adj.1

A head round like a bullet.

Zoology. A name of: any of various fishes whose heads more or less resemble that of a horse, as the moon-fish, Selene vomer, and the Hippocampidae.