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1.
Generally, a place where one expels urine.
"What's a urinarium?"
"A bathroom, you twat."
by Capt. Killer July 02, 2006

Words related to urinarium

urine bathroom kickass loo pee toilet urinal urinate
 
2.
A toilet cubicle
'Is he at the urinal?'
'No he's in the urinarium'
by tvradio September 24, 2008