To verbally or physically attack or accost someone. He's been lighting into the customer service representative for about half an hour now over our canceled flight.You can't just light into him anytime he doesn't do what we say—he's just a child!The actor lit into the film industry for allowing such abhorrent behavior to go unchecked.
light into
v.
To attack someone or something verbally or physically; assail someone or something: The two movie stars lit into the reporters for following them around.