W-ring

Pronounced ''Ring'' W-ring - When you're at work or wherever & you sit on the loo then get up & realise you have a wet ring on your butt because the cleaners have just been by & wiped the seat with the bog cloth

Aw maaaan, just been for a piss, the cleaners have been in, I've just been W-ring'd!
Ahhh FFS I've got a W-ring, I didn't expect that
Fuck I wish I could remember to check the seat is dry, I always get W-ring'd!!