Informal:

A popular axiom that deems food dropped onto the groud edible for a period of 5 seconds immediately following its release. Does not apply to porous or otherwise absorptive foods such as frosted cake or ice cream.
-No! Don't eat that!
-Nah, it's O.K. Five second rule!
додав Auto_Insurance 10 Липня 2004

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An informal notion that food dropped onto the ground is still edible if retrieved within a five second time frame. Variations exist; 30-second rule, 2-minute rule, et cetera.
Damn, that was the last potato chip. Oh well, 5 second rule in effect, right?
додав kinsmed 10 Липня 2004

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A rule that states a penis can touch anything for up to five seconds before the object is considered molested.
Husband: (poking dick against cosmetic mirror)
Husband: Look honey! It's kissing its reflection.
Wife: Urg! Stop molesting my mirror!
Husband: I'm not. 5-second rule! See. Smooch, one second. Smooch, one second. Smooch, one second...
Wife: (leaves to buy a new mirror)
додав Happy Jam 28 Липня 2011

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an excuse to eat food off the floor.
Eric: *walking along, sees a piece of candy on the ground* NOM

Jason: Dude...

Eric: 5 SECOND RULE
додав she who eats food off the floo 11 Березня 2011

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how long food can touch the ground before germs get to it
i wasnt going to eat this M&M but i just dropped it, 5 second rule!
додав zoey 10 Липня 2004

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if you drop a piece of food on the ground (most likely, something that you've taken a long time to prepare, at a time of crisis right before this needs to be served, or after a long day), you have 5 seconds to pick it up and it will be fine. While it still has germs, these 3 words just may give you peace of mind.
Crap! I just dropped the souffle I've been working on for 3 hours! And Jackie is getting here in 5 minutes! *picks it up* 5 second rule will have to do I guess.
додав Meg 10 Липня 2004

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When stuff you are eating falls on the floor, you have two options. You can pick it up and eat it, or you can throw it out. The five second rule is used when what ever falls is tasty, but you dont want to gross out your friends by eating something dirty. The five second rule, when imposed (usually along with a quick rinse or blow off) makes what ever you still want to eat socially acceptable to eat and void of all dirtyness. The 5 second rule may be be changed to the 10 second rule, the 15 second rul, or the "i have no clue how long its been there" rule.
guy one: dude, you just dropped your good tasting stuff
guy two: aww crap, butter move fast to make the five second rule. This stuff sure isnt good enough for a ten-er or a 15-er.
додав Taynton 09 Липня 2004

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