de trop
adjective /də ˈtrəʊ/
/də ˈtrəʊ/
[not before noun] (from French, formal)- not wanted, especially in a social situation with other people
（尤指在社交场合）不受欢迎，不需要，多余 - She deliberately tried to exclude David from the conversation and show him how de trop he was.
她故意想把大卫排除在谈话之外，让他看看自己有多好。
词源mid 18th cent.: French, literally ‘excessive’. - She deliberately tried to exclude David from the conversation and show him how de trop he was.