What is to give utterance to in a sportive manner; to throw out in an easy and copious manner; -- with off; as, to sport off epigrams. Addison. To sport one's oak. See under Oak, n called?

sport — To give utterance to in a sportive manner; to throw out in an easy and copious manner; -- with off; as, to sport off epigrams. Addison. To sport one's oak. See under Oak, n. (Webster's 1913.)

Sources