Post obit is a legal term that refers to a document signed by someone who is alive, pledging to pay a certain amount of money to another person after their death. It is a way of financing inheritances and is commonly used in estate planning. Some synonyms for post obit are postmortem loans, inheritance loans, and deathbed loans. These terms all refer to financial transactions where money is lent or borrowed on the promise of future inheritance. While post obit loans are legal in some countries, they are often subject to strict regulations and can be risky for both lenders and borrowers.