To finish another persons story or joke by interrupting them in order to get the satisfaction of the punch line.

You can also excuse yourself when interrupting another person by saying "I hate to Bob your story, but..."
-You= "Who'd win, Ditka or God?"

-Asshole who Bob'd your joke="Who'd win, no, no, trick question, Ditka is God"

-You= "You just Bob'd my joke you fuck!"
by Mo Vice November 11, 2010
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