Could you check the following dialogue from the sitcom 'How I Met Your Mother' (season 1, episode 6 Slutty Pumpkin)?
Guess what came in the mail today?
Our costumes? Do they rule?
Yeah, they rule. And yours is 100% wool.
I didnt understand the part "do they rule?". I switched language back to my native and it says "are they perfect?" What does "do they rule?" mean in this case?