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Use "chinning" in a sentence
"It was also found that, outside of weight-lifting and inordinate "chinning" and apparent great strength on the parallel bars, these men were not so valuable as the lesser muscled but more supple candidates."
"I find this incident in my notes (I suppose from "chinning" in hospital with some sick or wounded soldier who knew of it):"
""An 'I reckon that new-comer you've ben chinning with could explain if HE had a mind to.""