duff up
phr. v..phr. v.. to beat someone up or hit them many times. You use this when someone gets into a physical fight and wins easily.
phr. v.. to physically assault or beat someone; a transitive phrasal verb marked for British informal register, often implying a one-sided or punitive physical confrontation.
He threatened to duff up anyone who touched his bike.
The school bully was known for trying to duff up the younger kids behind the gym after class.
The protagonist narrowly avoids being duffed up by a group of local thugs after a misunderstanding in the pub.
usually takes a person as the direct object and is strictly informal.
this is a highly regional British term; compare it with the more universal 'beat up' or the American 'rough up' to show how slang varies across dialects.
He duffed up to the man.He duffed the man up.the verb is transitive and requires a direct object; 'to' should not be used before the person being hit.