As clean as a whistle

Pro Tip 1/3

Metaphorical Use

The phrase is a metaphor, comparing something's cleanliness to a whistle's clear sound, not its physical state.

He scrubbed the car until it was as clean as a whistle.

Pro Tip 2/3

Exaggeration for Effect

Often used to exaggerate how clean something is, implying it's exceptionally clean.

She left the bathroom as clean as a whistle; it was almost sparkling.

Pro Tip 3/3

Common Collocations

Commonly found with words like 'spotless' and 'sparkle' to emphasize cleanliness.

After the deep clean, the floors were spotless as a whistle.