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Noun. Exclamation used to interrupt and announce said interruption, thus being a meta-interruption. Often used to acknowledge that the person is intruding upon something.
And that said person is fucking annoying.
Steve and Jim were drinking and discussing their girl troubles when Will walked up to them and shouted, "Interrupsies!"
Will was promptly decked and given a bloody nose.
by Sheer April 16, 2010