Standard Lemma guide

muck-up

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

noun

Meaning 1

The act of botching something; an incompetent mistake.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: mess-up, aberration, bloomer, blooper, blunder, boner, boo-boo, break, clanger, cock-up, disadventure, error, fault, faux pas, floater, flub, fluff, fuckup, gaffe, goof, howler, inaccuracy, lapse, lapsus, misadventure, misstep, mistake, oopsy, screwup, slip, slip-up, slipup, stumble, thinko, wrength, solecism, erroneity

Antonyms: none provided

2

noun

Meaning 2

A prank.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: caper, capriccio, curvet, gag, gambade, high jinks, lark, marlock, monkeyshine, practical joke, prank, prat, reak, rag, shenanigan, trick, windup

Antonyms: none provided

History

Etymology

Deverbal from muck up.