A rule of dating that educated thirtysomething singles resort to after growing tired of dating hairdressers and waitresses who are for the most part uneducated. The rule states that in order for you to date her, she must have two college degrees. Of course, this only applies to dating. Random hookups with the uneducated are still allowed when the rule is invoked.
Guy 1: That waitress chick you hooked up with last night at waffles-r-us was a hottie. You should date her.
Guy 2: No way, Two-Degree Rule dude. Cosmetology school ain't one of them.