What does Area Code System mean?

Area Code System meaning in Urban Dictionary

Every human being on the planet can be adequately described using a three-digit number (i.e. area code). The first digit denotes the rating of how attractive the face is (0-9). The second digit describes whether you would sleep with that person or not (0=no, 1=yes). And finally, the third digit describes how attractive the person’s body is (0-9).