A pizza topped with all meat toppings available at a certain pizza place. Similar to a "Meat Lovers' Pizza" at a place like Pizza Hut, although a meatza usually has even more meat.
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.