Definition of muck in English:


Syllabification: muck
Pronunciation: /mək


1Dirt, rubbish, or waste matter: I’ll just clean the muck off the windshield
More example sentences
  • I have lived like we did in the jungles, in dirt and filth and muck, unwashed and unkempt.
  • Apart from the litter have you also noticed the amount of muck and dirt on the roads this winter?
  • The bomb craters were so deep we couldn't walk down into them, so we struggled around their rims like ants, fighting for a purchase in dirt, muck and shattered roots.
dirt, grime, filth, mud, slime, mess
informal crud, gunk, grunge, gunge, guck, glop
1.1Farmyard manure, widely used as fertilizer.
More example sentences
  • One of Britain's top trainers, Tim Easterby, who has 120 horses at Great Habton, Malton, uses the pure muck as a fertiliser on his own fields.
  • I assume the ‘very’ brown boots refers to farmyard muck?
  • ‘As I started to turn round a guy tipped a bucket of farmyard muck over me and then threw the rest of it over me and the car,’ he said.
1.2 informal Something regarded as worthless, sordid, or corrupt: the muck that passes for music in the pop charts
More example sentences
  • First we read the menu: there's nowt but foreign muck,
  • He seems to have a genuine hatred for and problem with the muck so many kids get raised on, and recognises that this may be the only hot meal they get that day.
  • This news has almost forced me to once again swim into the muck of Democratic Underground, which I have not read in almost two weeks.


[with object] Back to top  
1 (muck up) informal Mishandle (a job or situation); spoil (something): she had mucked up her first few weeks at college
More example sentences
  • I guess we have to wait for the mainstream media to muck things up this badly.
  • I get scared that I shall muck something up badly, so I tend not to volunteer for things.
  • One of the hardest things we ever have to learn is that you can't lead other people's lives for them, however intent they seem on mucking them up.
2 (muck out) chiefly British Remove (manure and other dirt) from a horse’s stable or other animal’s dwelling.
More example sentences
  • He'd asked me to muck a few horses out and I decided to take a radio down to keep myself entertained.
  • Straw bedding is fine as long as it is mucked out daily, removing all wet material and keeping the bedding as clean as possible at all times.
  • When I go home to my parents in Pennsylvania, people are amazed to see me in the barn, all filthy, mucking stalls out in wellies.
3 rare Spread manure on (land).
More example sentences
  • Help muck the fields and move hay.
  • With the horses we mucked the fields and then went out in the morning to feed everyone.


Middle English muk, probably of Scandinavian origin: compare with Old Norse myki 'dung', from a Germanic base meaning 'soft', shared by meek.


as common as muck

British informal Of low social status.
More example sentences
  • He's as common as muck, and God help him if he has to perform state duties - he can't stand foreigners.
  • You know, Ramirez, sometimes you seem as common as muck, and other times you're the most princely person I've met.
  • She is posing as a lady but she is really as common as muck.

make a muck of

informal , chiefly British Handle incompetently: it’s useless now that they’ve made a muck of it
More example sentences
  • Of course, if her side win today, Nilsmark will be remembered as the great master tactician, but if Europe slips to defeat, she could be accused of making a muck of her choices.
  • If Finnie makes a muck of it - as I'm sure he will - I wonder if Jack would look in my direction.
  • ‘No, she's just made a muck of things, that's all.’

Phrasal verbs

muck about/around

informal , chiefly British Behave in a silly or aimless way, especially by wasting time when serious activity is expected: he spent his summers mucking about in boats
More example sentences
  • Plenty of people enjoy mucking about in boats, but just as many appreciate a power shower and a lie-down in a real bed afterwards.
  • I didn't know what to expect, but they were laughing and mucking about.
  • He does all the serious stuff, which allows me to muck about.
(muck about/around with) Spoil (something) by interfering with it: they did not want designers mucking about with their newspapers
More example sentences
  • The French, who can't stop mucking about in West Africa, should meddle someplace where they might do a little good.
  • Each has a pretty carefully delineated sphere of interest, and won't take kindly to the other guy mucking about in it.
  • It's much better to remove one's self from the lower orders who muck about in the political mud, splashing it willy-nilly on their betters.

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