didn't invent gunpowder

didn't invent gunpowder

Didn't do anything significant. I don't understand why he's so conceited—he didn't invent gunpowder or anything!
See also: invent

didn't invent gunpowder

Rur. did not do anything terribly important. He may be the class president, but he didn't invent gunpowder. What's all this fuss about a movie star? She didn't invent gunpowder!
See also: invent
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