present participle of head-butt

(idiomatic) More complex or confusing than one can understand; beyond one’s comprehension. / (idiomatic) More than one can handle; too much (especially in over one's head).

(archaic) A bill of health that states that there is infectious disease present in either a ship, or its port of departure.

A bill of health that states that there is no infectious disease present in a ship, or its port of departure. / (figuratively, by extension) A statement that indicates that there are no obvious problems.

A certificate stating whether or not there is infectious disease aboard a ship or in a port of departure, given to the ship's master to present at the next port of arrival

(idiomatic) To identify something exactly; to arrive at exactly the right answer.

Alternative spelling of headbutt

Alternative spelling of headbutt

The part of a seat designed to support the sitter's head.

The military installation from which troops are commanded and orders are issued; the military unit consisting of a commander and his support staff.