Definition: It's a slang term that means "to hit hard." Here are some related words: - Buster (a person who bashes people in a game) - Bunker-buster (a device designed to blow up something in space, like a nuclear warhead) - Busters (the number of bombs dropped by one nation during World War II) - Bump (a bump caused by friction or acceleration) - Bunker (an old coal mine) So what's the word 'buster12'? It's just another way to say "hit hard" in a fun and unexpected way.