Simple past tense and past participle of jape.(verb)
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Use "japed" in a sentence
"As he japed and mugged and fidgeted, he seemed worried by something more than Iraq or the election returns; his whole character appeared to be wrestling with some more personal, inner demon."
"When he was exhausted he sat up; and they told stories and japed, till they were breathed enough to get up and dance."
"Right so came Dinadan, and mocked and japed with King Bagdemagus that all knights laughed at him, for he was a fine japer, and well loving all good knights."