Suddenly, Receiver, all has become clear - to someone. In a moment of revelation, the Bearer of The penny drops has understood the significance of recent events or communications, and wishes you to recognise that they are now fully cognizant of matters arising.

Should the Receiver be less than certain to what the Bearer is referring, Tell me more requires further detail. What do? and Where now from here? request advice as to how to proceed with this new knowledge, while Get over it advises the Bearer to deal with it in no uncertain terms and It's not what it looks like suggests apparent revelations are deceptive. Emotional responses can be conveyed with Despair or Jealousy, Congratulations offers sarcastic appreciation, while a direct Don't make promises you can't keep suggests the Bearer should feel somewhat less sure of themselves.