dog in the manger
01
自分は使わず人にも使わせない人, 意地悪な独占屋
someone who selfishly prevents others from using or enjoying something that they themselves have no use for
慣用句
例
Stop being a dog in the manger and let your sister use the bike.
自分が使わないなら意地悪しないで、妹に自転車を使わせてあげなよ。
