1972 means "I Love You"
When you say "1972" and your family,friends or stranger whatever they read your lips and so 1972 same way lip read "I Love You" same thing Elephant Shoes, Olive Juice, etc

the thing that you don’t have when you’re phones percentage is over 20

1972 is the year in which a crack camando unit was sentenced to prison by military court for a crime they didn't commit these men then promptly escaped from a maximum security stockade into the las anglous underground.