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An internet rule popularized via motivational poster that states that something needs more desu, no exceptions.
Person A: We need more pizza, desu.
Person B: What?
Person C: Rule 41.
by Kagi Omiya February 02, 2009
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The widely accepted rule of mentality that witty retorts, good comebacks, and the right thing to say will always come ten minutes or more after you need it.
Bob: At least somebody will get in bed with *me*.

Joe: Uh...erm.... STUPIDFACE!

*ten minutes later*

Joe: "At least my sister doesn't whore it up with me". Genius. Why didn't I get this when I needed it?

Carl: Rule 41.
by Alcnor March 26, 2009
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Rule 41 of the internet: No matter what it is it is someone's fetish. No Exceptions.
(facebook status) OMG!!! I love Disney Movies!!!
(commenter one) Rule 41.
(OP's comment) ???
(commenter two) that's sick...
by wrtbak March 15, 2010
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when you are just plain awesome, you win even when you lose
BOOM! HEADSHOT!
guyfighting in iraq: wow, i'm glad i'm awesome or else that 50.Cal might have made a dent. Hooray for Rule 41 !
by sethkasketch December 26, 2008
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