Simple past tense and past participle of lark.(verb)
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Use "larked" in a sentence
"A three weeks 'frost had effectually stopped the hunting; all the best tandem leaders were completely screwed; the freshmen had been "larked" till they were grown as cunning as magpies; and the Dean had set up a divinity lecture at two o'clock, and published a stringent proclamation against rows in the Quad."
"Instead of floating about in graceful attitudes, with the "amber dropping hair" of Milton's Sabrina, they "larked" like a school of porpoises, splashing each other and playing tricks."
"And he was not far wrong; the times and manners which he admired were pretty nearly gone -- the gay young men 'larked' him irreverently, while the serious youth had a grave pity and wonder at him, which would have been even more painful to bear, had the old gentleman been aware of its extent."