Green with envy

In English we often use colors in creative ways to describe how we feel. Here is an interesting example.
"Green with envy"
This idiom is used to describe a person who wants very much what someone else has. The use of the color green to mean the feeling of envy is very old. It was even used by Shakespeare in one of his plays.
For example: “Tom just bought a new car and I’m green with envy.”

この慣用句は他人の所有物をとても欲しがる人を表す時に使われます。緑色を使って、羨望的な感情を表すのはとても古い表現で、シェイクスピアの演劇にも使われました。
例）トムが新しい車を買って、僕はとても羨ましいよ。