hold one's piss

verb3

1. •
   (vulgar) To resist the urge to urinate.

   • They say I'm a camel because I can really hold my piss on long road trips.
2. •
   (vulgar) To wait, particularly unwillingly.

   • Hey, hold your piss, okay? You'll get your turn when your number comes up.
3. •
   (vulgar) To hide the effects of one's drunkenness; to convincingly behave as though sober while drunk.

   • I'd had a lot of beer, but I was able to hold my piss and get through the security checks and into the club.