that's a good oneused to tell someone that you do not believe something they have said and think it is a joke or a trick 我不信,开玩笑吧 You won $50,000? That’s a good one! 你中了五万美元?开玩笑吧!
that’s a good one• My car's on fire? Boy, that's a good one!• The idea of John getting sick, the idea of John coming down with something: that's a good one.
→ that’s a good one at good1(SPOKEN SECT)