1. As a noun meaning a large or impressive thing:
* "The restaurant served a whopper of a burger, weighing in at over a pound."
* "He told a whopper of a story about his weekend adventures."
* "The artist created a whopper of a sculpture, towering over the city park."
2. As an adjective meaning extremely large:
* "That's a whopper of a diamond ring!"
* "The building collapsed under the weight of a whopper of a storm."
3. As an informal slang term for a lie:
* "He told a whopper about winning the lottery."
* "Don't believe a word he says, he's known for telling whoppers."
The context will help you determine which meaning of "whopper" is being used.