(as) clean as a (new) pin
US /əz kliːn əz ə njuː pɪn/
UK /əz kliːn əz ə njuː pɪn/

1.
impecável, limpo como um pino novo
very clean or neat
:
•
After she finished cleaning, the kitchen was as clean as a new pin.
Depois que ela terminou de limpar, a cozinha estava impecável.
•
His car is always kept as clean as a new pin.
O carro dele é sempre mantido impecável.