Chrissy is the nickname given to girls who were named Christina or Christine. In my experience Chrissy's are extremely attractive, fun to be around, down to earth and generally really cool people.
Look up any girl named Chrissy on Myspace and you will see that they are all hot as shit.
Hey Chrissy, wanna go to dinner Saturday night?
I have the biggest crush on Chrissy man.
Mike: I was thinking about asking Chrissy out this weekend.
Dave: Not if I ask her first.
Chrissy's are the hottest girls on the planet.