-If a person says/does something obviously wrong, someone who notices this mistake can call "SCOOP!"
-If a person says/does something obviously wrong and they notice before someone else calls scoop on them, they can call "CRACK-BACK" and be safe from being scooped.
This is the basic overlie of the game, but some people extend the basic concept. For example, one extension lets the person who made the mistake "SELF SERVE" so they aren't at the mercy of the scooper.
The person who is getting the school does have the right to question if something is scoop worthy or not. Some people will call SCOOP after everything that comes out of your mouth, but only really obviously dumb comments are scoop worthy
-Hey man, have you ever been to Miami?
-No bro, I've never left the United States before.
-Miami is in the United States idiot.
-SCOOP! Come over here and get your scoop.
Example Of Scoop Game 2:
-Harry! Wake up we are going to be late for school!
-Today is Saturday...
-You lucky bastard. That was scoop worthy!