All fours, substantial-very low-jack - card games during which details are won for having the superior or minimal or jack or game cinches; cinched; cinching Britannica Dictionary definition of CINCH [+ object] US 1  : To lock (one thing, like a belt or strap) tightly all-around somebody or a little http://www.xiaodingdong.store/home.php?mod=space&uid=742524