(obsolete) Having shaggy hair, shock-headed.

(slang) A recreational user of the drug MDMA or ecstasy.

(nautical) The top of a sailing ship’s mainmast.

(syntax) Movement of a word from the head of one maximal projection to the head of another maximal projection above the first one (i.e., such that the destination head c-commands the original head).

A stupid or oblivious person. / One who wears a bucket, or a bucket-like object (such as a helmet) on their head. / One who eats or drinks by the bucketful.

Having a pointed head that is reminiscent of a bullet. / Stubborn and stupid.

(sports, pathology, slang) A concussion or subconcussive injury caused by tobogganing, including luging, skeleton, bobsledding, tubing; that stereotypically leaves the victim woozy or muddle-headed.

Third-person singular simple present indicative form of head-hop

present participle of head-hop

An attempt to psychologically manipulate. / A mental pursuit