Knock the stuffing out of somebody

Pro Tip 1/3

Physical Confrontation

Often implies a threat or fear of physical violence.

The boxer boasted he'd knock the stuffing out of his opponent.

Pro Tip 2/3

Metaphorical Beatdown

Can be used to describe non-physical defeat, like in games or debates.

She knocked the stuffing out of them in the chess tournament.

Pro Tip 3/3

Overwhelming Victory

Implies a complete or resounding victory over someone else.

Our team is going to knock the stuffing out of the competition.