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When one friend wants to hook up with someone but lacks the courage to do it, the other friend gives them two weeks to do it before they jump in and hook up with said person.
Courtney: I've been talking to this guy for weeks and I want to hook up with him so bad!

Jackie: Two week rule! Do it or I will.
by ladydestroyer November 08, 2011
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If you've been putting some task off for at least two weeks, then you can completely blow it off, because you've proven that it's possible to live without the completion of said task.
You've been meaning to investigate that funny noise your car engine makes in the morning, but after two weeks, there has still been no fiery explosion, so the two week rule applies, and you're safe to forget about it.
by legocreations February 04, 2010
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