like a million bucks
Very well; exquisitely. "Bucks" here is an American slang term for dollars. (Usually used with the verbs "look," "feel," or, of an object, some variation of "function.") Primarily heard in US, South Africa. After a delicious meal, a hot shower, and a good night's sleep, I feel like a million bucks today! You look like a million bucks! Have you been working out lately? After we replaced the motor, we had Dad's old mustang running like a million bucks.