1piss over somethingShow complete contempt for something.
deride, be contemptuous about, hold in contempt, treat with contempt, heap scorn on, pour scorn on, be scornful about, look down on, look down one's nose at, disdain, curl one's lip at, mock, scoff at, sneer at, sniff at, jeer at, laugh at, laugh out of court
2piss over somethingBritish Be far superior to something else.
‘it pisses all over the competition’
Are You Learning English? Here Are Our Top English Tips