golden combo; best duo
Refers to an exceptionally effective or popular pair, often in entertainment, sports, or business. Carries a positive, sometimes flashy nuance.
Those two are truly a golden combo, aren't they?
The host and assistant of this show are popular as a best duo.
Variant with interpunct; less common in running text but seen in titles or emphasis.
Wasei-eigo (Japanese-made English) combining 'golden' and 'combination' (shortened to コンビ). The exact origin is uncertain, but it likely emerged in media or entertainment contexts.