The phrase "post-obit" refers to a financial arrangement in which someone takes out a loan against the expectation of inheriting money from a will. However, there are several synonymous phrases that can be used to describe this practice. For example, "after-death lending" and "inheritance advance" are commonly used phrases that convey the same meaning as post-obit. Other synonyms include "probate loan," "inheritance funding," and "estate financing." These phrases are often used in the financial industry to describe loans that are taken out against future inheritances, and they can be helpful in avoiding confusion or misunderstanding when discussing these types of financial arrangements.