beat up
phr. v..phr. v.. to hurt someone badly by hitting or kicking them many times.
phr. v.. to inflict severe physical injury upon a person through repeated blows; typically used in the context of an assault or a fight.
The bullies tried to beat up the smaller boy.
He was worried that if he walked through that dark alley alone, someone might try to beat him up.
The protagonist was nearly beaten up by a group of hired thugs before the police arrived to intervene in the struggle.
this is a transitive phrasal verb that can be used with or without an object between the verb and particle.
distinguish from 'beat' (which can mean to win a game); 'beat up' specifically implies physical violence and injury.
They beat up him.They beat him up.when the object is a pronoun like 'him' or 'her', it must go between 'beat' and 'up'.