piss on someone's parade
English edit
Verb edit
piss on someone's parade (third-person singular simple present pisses on someone's parade, present participle pissing on someone's parade, simple past and past participle pissed on someone's parade)
piss on someone's parade (third-person singular simple present pisses on someone's parade, present participle pissing on someone's parade, simple past and past participle pissed on someone's parade)