The phrase "the game is up" is often used to indicate that a secret or deception has been discovered or cleared. There are several synonyms that can be used to convey this idea, such as "the jig is up," "the show is over," or "the cat is out of the bag." Other phrases that may be used include "the truth is out," "the gig is over," or "the scam is exposed." Regardless of the exact phrase used, all of these synonyms convey the sense that someone's hidden intentions have been revealed and their plans have failed.