1 definition by VaatiKaiba

Top Definition
Used when one has just won an argument, debate, or other point of conflict. Most effective when the winner gets overexcited, slams their hand on the table and tries to rub it into their opponent.

Hilarity added when the winner is an Irishman in London.

Verb: to boom.
And that, good sir, is boom!
by VaatiKaiba August 02, 2011

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