muck

[ muhk ]
/ mʌk /

noun

verb (used with object)

Verb Phrases

muck about/around, Informal. to idle; waste time; loiter.

Origin of muck

1200–50; Middle English muc, muk < Old Norse myki cow dung

Definition for muck up (2 of 2)

muck-up
[ muhk-uhp ]
/ ˈmʌkˌʌp /

noun Informal.

a bungled or disordered situation; foul-up.

Origin of muck-up

First recorded in 1925–30; noun use of verb phrase muck up
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for muck up (1 of 2)

muck up

verb (adverb) informal

(tr) British and Australian to ruin or spoil; make a mess of
(intr) Australian to misbehave

British Dictionary definitions for muck up (2 of 2)

muck
/ (mʌk) /

noun

verb (tr)

Word Origin for muck

C13: probably of Scandinavian origin; compare Old Norse myki dung, Norwegian myk
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with muck up

muck up

Bungle, damage, make a mess of, as in Don't let him write the review; he's sure to muck it up. This idiom alludes to the verb muck in the sense of “spread manure on.” [Early 1900s] For a synonym, see foul up.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.