piss thin

1. rank, horrible, weak

2. insubstantial, lacking, weak

3. uncool, dry, weak

that shirt is piss thin

that coke was piss thin

this party is piss thin

pissing on thin ice

To clearly give no fucks even if you are already on thin ice.

Dave lost two accounts yesterday, and has now taken the day off. He is really pissing on thin ice.