cardcastle
/ˈkɑrdˌkæsəl/
noun
- A structure built by stacking playing cards in a balanced way, often used as a metaphor for something fragile or easily destroyed.
- Their plan was like a cardcastle, ready to collapse at the slightest mistake.
- The child carefully built a cardcastle on the coffee table.
- He spent an hour constructing a cardcastle, only to sneeze and knock it down.