Contraction of 'Bugger It'. A phrase often used by Foul Ole Ron, a character from Terry Pratchett's Discworld novels. He is an extremely repulsive entity who lacks the ability to speak coherently. Other phrases used by Foul Ole Ron include 'Buggrem' and 'Millenium hand and shrimp', bizarrely.
"Buggrit, buggrem, see if i don't! Millenium hand and shrimp!"
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