What is It Is For Crossing?
1.
Another way of saying "let's go."
It originated late one night when a teenager was having trouble speaking but wanted her friend to follow her.
Relates directly to a traffic light giving you the right of way, but can be used in any context.
Usually said on its own and not in conjunction with other words or sayings.
Carly: "It is for crossing."
Casey: "Oh, ok." <they both walk across the street>