As a noun meaning "a large hamburger":
* "I'm craving a whopper for lunch."
* "The whopper is a classic fast food item."
* "They added a new spicy whopper to the menu."
As a noun meaning "a big lie or exaggeration":
* "He told a whopper about winning the lottery."
* "That story about the giant squid was a whopper."
* "Don't believe everything you hear, some of it might be a whopper."
As an adjective meaning "large":
* "That was a whopper of a mistake!"
* "He caught a whopper of a fish!"
* "The movie was a whopper of a disappointment."
Remember, the meaning of "whopper" can vary depending on context.