Wear-out meaning : To cause (something) to become damaged, useless, or ineffective through continued use, especially hard, heavy, or careless use. To deteriorate or become unusable or ineffective due to continued use, exposure, or strain. To exhaust; to cause or contribute to another's exhaustion, fatigue, or weariness, as by continued strain or exertion. To become exhausted, tired, fatigued, or weary, as by continued strain or exertion. Of apparel, to display in public. Of a shirt, to not tuck into the pants; to wear in a casual manner. To punish by spanking.