1 definition by Lord Bum Wee

Top Definition
An illness / infliction often found to affect 18 - 30 yr olds the morning after a big night out.

The bum wee is consistency of water, approximate density of 1001 kg/m3 and can be coloured various different shades of brown (linked to what alcohol has been consumed the night before - for example - Very Dark Brown = Guiness)

It can cause some "irritation" of the bottom, but this will subside once the bum wee ceases.
Very Dark Brown Bum Wee = Guiness
by Lord Bum Wee June 07, 2009

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