(intransitive, idiomatic, slang, vulgar) To perform oral sex on another person.

(idiomatic) To a considerable degree. / By force; violently.

Used other than figuratively or idiomatically: see cylinder, head.

present participle of head-butt

The chief public representative of a nation having duties, privileges and responsibilities varying greatly depending on the constitutional rules; a monarch in a monarchy, and often styled president in a republic, but variations such as collegiality exist.

A screwdriver with a '+' shaped head for turning screws so socketed. / A screw turned by such a screwdriver.

(idiomatic) An advantage consisting in starting a competition or task earlier than might be expected; given (or taken), for example, prior to the beginning of a race.

(informal) The person in charge; the highest-ranking person in an organization.

The chief, senior or most authoritative of a group of linesmen officiating at a match.

That part of a printer that transfers a character or image to the paper.