To skip any form of hygienic activity after being out all night drinking.

Then turning up to work smelling like shit and trying to "hide" the smell by using deodorant.
by Cleaten December 4, 2003
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Understanding the reluctance of Pommies to use water, the 'Pommy shower' has its roots in one standing in front of an electric fan and urinating toward it, resulting in being covered in urine.
"Shit the tanks dry Kev, I had to opt for a Pommy shower" .
by Arch Archie November 6, 2011
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