1 definition by lanky83

Top Definition
a rapid and violent excretion as as a result of drinking in excess .

often described as a hangover shit : picture your bum throwing up .

essentially a nightmare for shared toilets .
-"i just saw Commi running down the corridor with a look of sheer panic on her face".

-"too right , she went out last night, that'll be the first BUM CHUNDER of today . lets hope she makes it to the loos" .
by lanky83 January 13, 2011

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