The piss of the Monarch.

See also: the royal we.
Queen Elizabeth II: "the royal wee is running down ones pegs"

Prince Phillip, the Duke of Edinburgh: "you lucky twunt, I haven't had so much as dribble in 30 years"
by bob the peasant October 17, 2008
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When a man chooses to sit down to urinate.
He didn't like to stand at the urinate, he preferred to do a Royal Wee.
by notaspaceship May 23, 2017
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