基本解释在地上打滚；好笑，好玩（网络聊天室用语，rolling on the floor的缩写，表示觉得某事很好笑）。同根派生 rotf相关词英英字典剑桥英英字典 written abbreviation for rolling on the floor: used, for example in an internet chat room, to show that you think something is funnyrotf剑桥字典rotf柯林斯字典