1 the waste from farm animals, used to make plants grow better （牲畜的）粪便；粪肥 [SYN] A more common word is manure. 较常用的词为manure。
2 (informal 非正式) dirt or mud 脏物；污泥
muck²
/mʌk ||; mʌk/verb (informal 非正式)muck about/around to behave in a silly way or to waste time 胡闹；混日子；浪费时间: Stop mucking around and come and help me!别胡闹了，快来帮帮我吧！muck sth up to do sth badly; to spoil sth 做得差；弄糟；破坏: I was so nervous that I completely mucked up my interview.我紧张得把面试完全弄糟了。