'Kào pǔ' literally combines 'kào' (to rely on, depend on) and 'pǔ' (musical score or standard), evoking the idea of something that follows a reliable 'score'—i.e., predictable, consistent, and trustworthy. Though it originated in Beijing slang, it’s now widely used across China in informal spoken and written Chinese.

This term is almost exclusively used to describe people, plans, information, or services that inspire confidence because they’re dependable and unlikely to disappoint. It carries a warm, colloquial tone—more positive and personal than formal synonyms like '可靠' (kěkào). You’ll hear it often among friends evaluating job candidates, recommending restaurants, or deciding whether to trust online reviews.