"Gave the show away" is a colloquial phrase that refers to unintentionally revealing a secret or giving away information that was meant to be kept hidden. There are several synonyms that can be used in place of this phrase, including spilled the beans, let the cat out of the bag, gave it all up, blew the lid off, and exposed the truth. These synonyms all convey a sense of revealing something that was meant to remain hidden, and they can be used in a variety of contexts, from interpersonal relationships to corporate settings. Choosing the right synonym for the situation can be important to convey the appropriate level of severity or humor.