(boxing) Of a punch, landing illegally, below the opponent's waist. / (by extension, idiomatic) Unfair; dirty; not according to the generally accepted rules.

(idiomatic) To cause a specific vehicle to accelerate; to open the throttle of an engine.

(idiomatic) To beat or strike someone. / (idiomatic) To thoroughly and decisively defeat someone in a physical fight, especially by knocking out that person.

(idiomatic, euphemistic) Naked.

Any of the mechanical figures that come out regularly to strike the bell of a clock.

(transitive, slang, Britain) To fire (an employee); to end a relationship with someone; to reject someone.

(idiomatic) The situation in reality as opposed to in the abstract. / (literally) Some aspects of the situation in a particular location.

(idiomatic, followed by a clause) Thinking or making assumptions, often incorrectly.

(US, idiomatic) immediately, from the very outset.

(of a defeated army) To be humiliated by the victors.