Simple past tense and past participle of champ.(verb)
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Use "champed" in a sentence
"Dante places him in the lowest round of the ninth or last of the hellish circles, where he is eternally "champed" by Satan,"
"Nor did they notice his occasional exclamations and utterances of phrases which meant nothing to them, as, for instance, when he smacked his lips and champed his gums while muttering:"
"And the circle of old men champed their gums, and nodded approvingly, and coughed."