Box someone's ears

Origin

The verb "to box," meaning "to strike or hit," has roots as far back as the 14th century, likely stemming from the physical action of a closed fist resembling a "box" itself, or perhaps from the notion of hitting someone's "box" (head). When this forceful verb joined with "ears," it vividly captured the act of delivering a sharp, open-handed smack to the side of the head. This became a common and accepted form of minor physical discipline, particularly for children, serving as a swift, stinging reprimand meant to shock them into obedience rather than inflict serious harm. The phrase quickly cemented itself in the lexicon as a euphemism for a corrective, albeit painful, tap.