| house of cards | |
| —n | |
| 1. | a tiered structure created by balancing playing cards on their edges |
| 2. | an unstable situation, plan, etc |
| a screen or mat covered with a dark material for shielding a camera lens from excess light or glare. |
| a fool or simpleton; ninny. |
house of cards
A weak and fragile structure, plan, or organization, as in Her scheme to reorganize the school sounds like another house of cards, or Jerry built his entire business on what turned out to be a house of cards. This metaphoric expression alludes to the structure made by balancing playing cards against one another. [First half of 1600s]