Top Definition
When someone who thinks they're smarter than you are randomly spews out unsolicited, relatively obscure facts relating to any subject.
Glenn: Did you know that on Star Trek the USS Enterprise is powered by a Matter-Anti Matter reactor?
Christian: You're such a friggin' know it all. Enough with Fact Bombs already would you?
by Snarkzilla February 03, 2014
(n.)A true statement that severely disrupts a conversation.
Mary: So, I was thinking about going out with that Craig guy.
Sarah: He's a pretty good guy, I've hung out with him a few times.
Bill: I've never had anything against him.
Al: He's my neighbor and is a registered sex offender.
*Awkward*
Bill: Great job on that factbomb.
by loki1717 July 04, 2009
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