an offer one can't refuse

The phrase "an offer one can't refuse" implies a proposition or proposal that is so appealing or advantageous that the person receiving it feels compelled to accept, without any desire or ability to resist or reject it. It generally refers to an irresistible offer or opportunity that is difficult for someone to turn down due to its significant benefits, incentives, or advantages. The phrase often suggests that the consequences of refusing the offer would be highly unfavorable or detrimental.