the belief that if one picks up food quickly after they drop it it is still good.
He choose to follow the 5-second rule despite the dubious way in which the floor was cleaned.
A myth that says that if you drop food on the floor, and pick it up within 5 seconds then it's okay to eat. But research done at University of Illinois has disproved this, and says that food picked up in under 5 seconds had a significant amount of bacteria on it.
"Ewwwww! Your gonna eat that? It's been on the floor!!" "Yeah, 5 second rule."
A highly scientific finding that says that germs need at least five seconds to jump on food that falls on the floor, enabling the person who dropped said food to pick it up and safely consume it, as long as they do so within five seconds of dropping it.
"Hey dude, that cookie's still OK to eat, the five second rule's in effect."
A widely known rule used to make morons feel better about eating off of the ground. Supposedly the food god protects all food for 5 seconds after it touches the ground. After which the food god will become angry and infest it with cooties
Moron: Oh noes my sammich!
Food god: Hurry, pick it up. 5 second rule!
~5 seconds later~
Food god: I am angered! I shall infest your sandwich with cooties!!
The window time a hot female has to make her point before a guy shifts his attention to her rack.
Hot Girl:I just read this book on feminist movement and realized how poorly men have treated women over the past century.
Hot Girl:Hey! Are you listening to me!
Guy:Oh! I'm sorry babe 5 second rule.
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)
an excuse to eat food off the floor.
Eric: *walking along, sees a piece of candy on the ground* NOM
Eric: 5 SECOND RULE