To be met by an abrupt, unexpected, and overwhelming force. It is often used with an exclamation point at the terminus of the word even when not used at the end of a sentence.
"Pardon me, dear lady, had you beheld the man that was earlier today struck by a comet?"
"My stars, it was a burgerslam! the likes of which I have never seen!"
by Turtleproof July 19, 2007
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