くち える
kuchiga koeru

Ichidan Verb
Expression

1. to be used to eating the best; to have a refined palate

ロビンは くち えて贅沢 ぜいたくになったのかしら。
robinwa kuchiga koete zētakuni natta nokashira.
Perhaps Robin's got a taste for the finer things in life and has become extravagant.