Definition
This phrase is used to express that one cannot take a suggestion seriously due to its absurdity or lack of feasibility.
別開玩笑了！
You say you'll finish this project in one day? Don't make me laugh!
你說你一天之內就能完成這個專案？別逗我笑了！
He wants to be president? Don't make me laugh! He can't even manage himself.
他想當總統？別逗我笑了！他連自己都管不好。
They say they want to cut the budget but also expand the business? Don't make me laugh!
他們說要削減預算但又要擴大業務？別逗我笑了！