"Chewed the scenery" is a phrase commonly used to describe someone who overacts or hams it up when performing. There are several synonyms for this phrase, some of which include "stole the show," "hogged the limelight," "overplayed their part," and "went over the top." These phrases can also be used to describe someone who is being dramatic or excessive in any other situation, such as during a conversation or in their behavior. When someone "chews the scenery," it can be entertaining or amusing, but it can also be frustrating or annoying if it takes away from the intended focus or message.