The term "rubber check" refers to a check that bounces and is returned by the bank due to insufficient funds in the account. However, there are several other synonyms for this term, including "bounced check," "bad check," "dishonored check," and "returned check." These terms all refer to the same situation when a check is not honored by the bank and is returned to the recipient. It is important to keep track of your finances and ensure that you have enough funds in your account to avoid writing rubber checks which can lead to serious financial consequences such as fees, damage to credit score, or even legal actions.