Top Definition
the 2 inches added to the end of a ruler when a man measures his penis.
mines 9 inches, with the costamary 2 inch rule.
by fatassbuddabelly August 19, 2006
It means that aslong you don't put your dick 2 inches in a girls pussy you didn't have sex.
"So did you fucked that girl?"

"No, i used the 2 inch rule"
by Fetcher September 05, 2007
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.

×