The phrase "given the whole show away" is often used to describe a situation where someone reveals too much information or gives away a secret that they were supposed to keep. Some synonyms for this phrase include "spilled the beans," "let the cat out of the bag," "blabbed," "disclosed," "divulged," "betrayed," "exposed," "outed," "unveiled," and "revealed." These words are often used in different contexts and convey a sense of embarrassment or regret when something is revealed prematurely. It's important to be careful and cautious when sharing information, and to think twice before "giving the whole show away".