The phrase often emphasizes getting rid of every trace, especially after using a product.

Complete Removal

Commonly used in the context of washing hair or cleaning the mouth.

Personal Hygiene

Though typically with water, may involve other liquids for specific cleaning instructions.

Often refers to cleaning containers thoroughly, not just a quick wash.

Implies preparing a container for another use by removing old contents.

Used in cooking to ensure flavors aren't transferred from previous contents.