A threat affecting certain school environments. It could be minor, or serious. A minor one would allow class to continue, on the condition that no one can leave the room. A serious one could mean there's imminent danger, and you need to be hidden, quiet, and vigilant. They'realways to be taken seriously, because you never know if it's a false alarm or not.
Man, I still can't believe this damn place called a school lockdowncuz a toilet broke.
The act of masturbating in a locker of anykind (P.E, School, Gym, Etc.) It is done by putting your genitalia in your locker and masturbating with majorly attracting a disgusted crowd. It is usually done with a third partytool such as a dildo or a pocket pussy. Or you can go old school with lube and your dominant hand.
*from afar*
Matt: Why is Griffin so close to his locker? It looks like he's trying to pick up a heavy textbook.
Gavin: He's pulling a locker fap.
Matt: I thought he was just making funny faces because he's dicking around.