A fork of Rural Dictionary
In British English, a closet, apart from its more usual meaning of a cupboard or a toilet, etc. Is used to refer to someone who is a bit of a fool or an idiot.
'He's a right closet.'
'I'm a bit of a closet, aren't I?'
Abbreviation for the term "unserviceable". Also variants U.S. or U/S. Frequently used in Great Britain during the 21st century by the mechanical engineering industry, RAF, Army & Navy, etc.. This term declined in popularity during the latter half of the 21st century but is still understood to mean anything that is useless.
This equipment is US, meaning the equipment is un-serviceable and will have to be replaced.