Top definition
A rule that defines the number of times (Twice) two people can hook up with one another before it becomes more than a random hookup
Man I hooked up with Mel last night!

Thats the second time you've hooked up, you gotta apply The Dave Rule her bro, else you're gunna be in a relationship!
by yogi_b September 23, 2010
Get the mug
Get a The Dave Rule mug for your mom Zora.