n (1)杂(脏)乱(dirty or untidy condition)[C，通常sing]：Your bedroom is (in) a～.你的卧室乱得很。The place is (in) a～.这地方很脏。Your office is (in) a～.你的办公室脏乱一团糟。What a～the house/the apartment/her hair is in!这房子内/公寓里/她的头发乱七八糟!There was an untidy～in the children's room.孩子们的房间乱糟糟的。make a terrible/awful～in the cellar把地下室弄得一塌糊涂/凌乱不堪;Clear up all the～in the lounge/on the floor/in the kitchen.清扫起居室/地板/厨房里乱糟糟的一切。Who made this～? 这是谁弄脏的?〖同〗litter，disorder;

(2)混乱(困难)状态(局面)(unpleasant，difficult，confused or complicated state or situation)[U，a～]：Your life's such a～.你的生活是如此的糟糕。get sb in a/get oneself in(to) a～使某人/自己陷入困境;How did he get into a～like that? 他的处境怎么会那样狼狈? A nice～you've made of it/that/the job!你把这弄得/那弄得/这活儿弄得好糟糕! His business affairs are/The copper industry is in a～.(ironic)他企业的事务/铜业陷入困境。〖同〗difficulty，confusion，trouble;

(3)不卫生(不整洁)的人(person who looks dirty or untidy)[C，通常sing](infml)：He is a～.他邋遢得很。She looked a～in that dress.她穿那件衣服看上去很邋遢。

(4)(动物的)粪便(excrement of an animal)[U](infml)：clear up the dog's～清除狗屎;The dog has made(left)another～on the floor.狗在地板上又拉了屎。

vt (1)弄乱(脏)(make sth dirty or untidy)[T+n](AmE)(infml)：～sb's hair 弄乱某人的头发;His clothes are all～ed.他的衣服都弄脏了。

mess about/around(v adv) 1)胡闹(vi)：Stop～ing about and listen to me.别闹了，听我说。2)悠闲，消磨时光(vi)：I love～ing about in the kitchen.我喜欢在厨房里不紧不慢地做家务。

mess about/around with sth/sb(v adv prep)(mess sth/sb about/around)(v adv)：1)漫不经心地对待，随便对待(人)(vt)：You shouldn't～around with someone so young.你不应随便对待这样一个年轻人。The travel agents have really～ed me about.旅行社的人随便把我打发了。2)玩(摆)弄(vt)：stop～ing about with that gun/the sharp knives不要摆弄那支枪/锋利的刀子;

mess up(v adv) 1)弄脏(乱)(vt)：Who's～ed up the bookshelf? 谁把书架弄乱了? 2)打扰(乱)(vt)：My husband's broken leg has really～ed up our holiday plans.我丈夫摔断了腿，把我们的假日计划全部打乱。