To cuff heavily. Now dialect or colloquial.

transitive. To strike, thump; to bruise flax, etc., by beating it.

To strike, smite, or beat severely or heavily.

transitive. To deal a blow to, to slap heavily. Also intransitive.

transitive. To strike with a heavy blow or thump; to knock, beat; to shake by knocking or beating. Also: to bang, slam (a door, etc.); frequently…

transitive. To give a beating or thrashing to, especially as a punishment; to strike, thump. Also intransitive.

transitive. To strike or smite heavily; to beat, to thump; to assail. Also with about. Obsolete.

To strike with a heavy blow that tends to beat or smash in the surface struck. absol. or intransitive (with at.)

transitive. To hit or strike (a person or thing) forcefully.