Simple past tense and past participle of rap.(verb)
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Use "rapped" in a sentence
"With one out, Valentin rapped his 22nd home run and Crede followed with his 15th."
"A group of four youths from Cape Town "rapped" two songs about"
"The captain continues the bitter commentary for a moment before calming himself down, saying he knows that Jenko wouldn't have wanted them to get angry about his death, and himself would have "rapped" to them about balance in the cosmos "and some nonsense about karma.""