The wierd plastic aparatus you often find stuck in your delivery pizza. This is used to prevent the box from squishing it and/or turning it to pizza mush before it gets to you.
"Awww, David always gets to play with the pizza bone...It's my turn!"
by Charlie Q. Badly November 10, 2007
The edge of the pizza, which has no toppings, the "crust". Often left over, which most normal people simply refer to as crust, but Victor calls "bone" as in "pizza bones".
Mike said "Dude, don't put your crust back in the box, there are pieces left in there, that's gross" and Victor from then on, left his pizza bone on his plate, like civilized people do.
by VictorD May 16, 2012