LIFE What is a John Hancock slang? InsuNews May 23, 2022 What is a John Hancock slang? Informal. a person’s signature: Put your John Hancock on this check. See also What is the best auto warranty company? Continue Reading Previous What does Hancock sell?Next Can you borrow from a Securian life insurance? More Stories LIFE Who is the biggest insurance underwriter for? InsuNews May 23, 2022 LIFE What is whole term life insurance? InsuNews May 23, 2022 LIFE How does whole life and term life insurance work? InsuNews May 23, 2022