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1. tea piss
Tea piss - a tea piss is where a mouthful of tea is spat out due to involuntary laughing at a funny joke or incident.

This term could evolve into other beverages.
E.g. coffee piss, coke piss etc.
"he heard the punch line of the joke and subsequently performed a tea piss, spraying the room with a fine mist of brown liquid and soaking his colleagues!"
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