[a presumptuous guest usurps the host's role] 喧: 大声吵嚷。 客人谈论的声音超过了主人的声音。 比喻客人取代了主人的地位, 或外来的、 次要的事物侵占了原有的、 主要的事物的地位

xuān bīn duó zhǔ

lit. the voice of the guest overwhelms that of the host (idiom)

fig. a minor player upstages the main attraction

minor details obscure the main point

the sauce is better than the fish

The wrangling guest robs the place of the host.; a gate-crasher supplanting the host; a minor issue taking precedence over a major one; A presumptuous guest usurps the host's role.; garrulous (clamouring; aggressive) guests putting the host in the shade; overshadow the leading role (of sb.); The sauce is better than the fish.; The secondary supersedes the primary.:

【释义】喧：声音大。客人的声音压倒了主人的声音。比喻外来的或次要的事物占据了原有的或主要的事物的位置。

【近义】反客为主、本末倒置

【反义】客随主便

【出处】清·杨宜治《俄程日记》：“近有喧宾夺主之势。”