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An Instant Buzz Kill, or IBK, occurs when someone or something effectively pours a bucket of ice over a situation in which one or more individuals are engaged in a positive experience.
We were all standing around the water cooler having a laugh when Larry from Accounts wandered over and shouted at us to 'shut the hell up'... IBK.
by JGC the 3rd February 22, 2017
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Idiot Behind Keyboard; usually the cause of 99% of errors on computers.
An IBK error occured when Mary forgot to plug the computer in.
by Matt September 07, 2003
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