as a non native speaker I would understand it just the opposite.
8 [with object] Discharge (something, especially urine or faeces) from the body: she may have difficulty in passing urine
"pass water" in British English
polite expression for urinate
I am continuously surprised at the way people use the word pee. Men do not pee. We piss.
I don't think I've heard that used in over 50 years.