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)
(Proceeds to pick up dirty-ass rocket pop and suck the lint off of it)
* Note: in fraternity houses, this rule is the 1.5 second rule. Rule is invalid in the restroom.
Person 2: 5 ... 4 ... 3 ... 2 ...
Person 1: Got it!
Person 2: 5-second rule. It's yours, dude.
2. A rule governing the amount of time it takes for George W Bush to speak before he mispronounces a word.