A unit of measurement that serves as a placeholder for any length of time needed to accomplish a goal or complete a task when you do not know how long it will actually take.
Boss: I need those tax documents on my desk before the end of this quarter, Billy!
Billy: Sorry Sir, I can get them to you within 3 weeks.
Boss: ... You're fired, Billy.
By Vally
3 Week Rule
The rule that states that if an individual has left an item at a friend's house that hasn't been moved or used within a 3 week period: then that item may be used by the household's occupants as an improvised ashtray.
Nathan: "Dude I was gonna make a coffee why the shit is my coffee mug full of ash and cigarette ends?"