not have a pot to piss in
rude slang To be broke or destitute It sounds like Betsy doesn't have a pot to piss in. So what makes you think she's going to loan you money?
not have a pot to piss in
be very poor. North Americanpot to pee/piss in, not have a
Be extremely poor. This slangy Americanism, as in “The stock market crash wiped him out—now he hasn’t a pot to pee in,” dates from about 1900. The pot in question is a chamber pot.