not have a pot to piss in
US /nɑt hæv ə pɑt tu pɪs ɪn/
UK /nɑt hæv ə pɑt tu pɪs ɪn/

1.
一无所有, 身无分文
to be extremely poor; to have no money or possessions at all
:
•
After losing everything, he didn't have a pot to piss in.
失去一切后,他一无所有。
•
They started with nothing, literally didn't have a pot to piss in, but built a successful business.
他们白手起家,简直是一无所有,但却建立了一个成功的企业。