A rule dictating that a man must wait at least two weeks after a woman gets out of a long relationship to ask her out.
I'm really glad she broke up with that dude, and I want to ask her out, but I should obey the 2 week rule and wait.
by jv4life_11 April 18, 2011
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The established rule for describing major plot elements in a film. Wait two weeks, then you’re good.
1: Have you seen the new Joker film?

2: Hell yeah! The part where *spoiler* was fucking crazy!
1: Asshat! 2 week rule!
2: Shit, totally forgot.
by SteakNGravvy October 13, 2019
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The aproximate amount of time since last time you had sex/intimacy with someone; when you are the most in danger of doing something stupid just because it's been a while since last time you got any.
Often involves going back to previous partners.

If you get over the 2 & 1/2 week rule phase, your next sexual encounter is much less likely to be looked upon as unfortunate.
-What? Jake went home with Mary again last night?!
-Yeah, he fell victim to the 2 & 1/2 week rule.
by OST October 23, 2007
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it almost never fails. within 2 weeks of a break up, your ex hits you up either apologizing, begging for you back, or just saying their final goodbye
did you hear? emma was right about the 2 week rule. josh texted her last night.
by MTisbisZ September 8, 2021
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