when you don't want to go to class but you are supposed to hand in an assignment. instead of going to class and trying to sneak out afterwards you simply open the door and "toss" your assignment in, hoping someone will hand it in for you. Most people wonder why you wouldn't just ask your friend in the class to hand it in but anyone who is willing to perform the toss revels in the toss glory. This also works when you don't know anyone in your class.
Guy 1: "gay, i don't want to go to math, but i have to hand in my 30 questions"
Guy 2: "just pull the toss"
Guy 1: "true, then we'll go to pizza hut"