highway robbery
公然索财，敲诈勒索
口语·抱怨价格过高
英文释义
an outrageously high price for something; an unfair or excessive charge
例句
Twenty dollars for a bottle of water? That's highway robbery!
典故来源
源于18-19世纪公路上强盗拦路抢劫的历史，后比喻价格高得离谱。