The term 'You Can Believe Me!' can be summarized by two crossword solutions: 'HONEST' (6 letters) and 'restassured' (11 letters). The term is often used to express trustworthiness and reliability, as it implies that the speaker is being truthful and can be trusted. The words 'HONEST' and 'restassured' both reflect this sentiment, as they are often used to describe someone who is trustworthy and reliable.