"Bad checks" is a term used to describe checks that are dishonored or returned by banks due to insufficient funds in the account. However, there are several other synonyms that can be used to describe such checks. Some of them include rubber checks, bounced checks, returned checks, and insufficient fund checks. These synonyms are commonly used in financial institutions and legal settings when discussing nonpayment of check dues. Additionally, such phrases as "check kiting", "paper hanging", and "check fraud" are also used to refer to the practice of writing bad checks. Ultimately, it is essential for individuals and businesses to take proactive measures to avoid the consequences of using bad checks.