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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Received-Pronunciation:/ˈflaɪ ɪn ði ˈɔɪntm(ə)nt/
General-American:/ˈflaɪ ən ði ˈɔɪn(t)m(ə)nt/
Australia:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
Something (especially a minor thing) which ruins or spoils everything else, or makes it less pleasant; a nuisance or problem; a disagreeable or unpleasant detail.
Definition source: English Wiktionary via Wiktextract
Usage: idiomatic
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: turd in the punchbowl, worm in the apple, fly in the buttermilk
Antonyms: none provided
2
noun
Meaning 2
an inconvenience that detracts from the usefulness of something
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
A reference to Ecclesiastes 10:1 in the Bible (King James Version; spelling modernized): “Dead flies cause the ointment of the apothecary to send forth a stinking savour: so doeth a little folly him that is in reputation for wisdom and honour.”
Across languages
Translations
25 source translations are retained for this English entry.
Belarusian:
лы́жка дзёгцю ў бо́чцы мёду
(lýžka dzjóhcju w bóčcy mjódu)
— something which ruins or spoils everything else, or makes it less pleasant
Chinese Mandarin:
金玉其外,敗絮其中 /金玉其外
— something which ruins or spoils everything else, or makes it less pleasant
Chinese Mandarin:
败絮其中
(jīnyù qíwài, bàixù qízhōng)
— something which ruins or spoils everything else, or makes it less pleasant
Czech:
vada na kráse
— something which ruins or spoils everything else, or makes it less pleasant
Danish:
hår i suppen
— something which ruins or spoils everything else, or makes it less pleasant
Dutch:
haar in de boter
— something which ruins or spoils everything else, or makes it less pleasant
Finnish:
riesa
— something which ruins or spoils everything else, or makes it less pleasant
Finnish:
kauneusvirhe (aesthetically)
— something which ruins or spoils everything else, or makes it less pleasant
Finnish:
kanto kaskessa
— something which ruins or spoils everything else, or makes it less pleasant
Finnish:
mutka matkassa
— something which ruins or spoils everything else, or makes it less pleasant
French:
couille dans le pâté
— something which ruins or spoils everything else, or makes it less pleasant
French:
couille dans le potage
— something which ruins or spoils everything else, or makes it less pleasant
French:
hic
— something which ruins or spoils everything else, or makes it less pleasant
French:
os
— something which ruins or spoils everything else, or makes it less pleasant
French:
problème
— something which ruins or spoils everything else, or makes it less pleasant
German:
Haar in der Suppe
— something which ruins or spoils everything else, or makes it less pleasant
Polish:
łyżka dziegciu w beczce miodu
— something which ruins or spoils everything else, or makes it less pleasant
Portuguese:
jato de água fria
— something which ruins or spoils everything else, or makes it less pleasant
Serbo-Croatian:
муха у јухи
— something which ruins or spoils everything else, or makes it less pleasant
Serbo-Croatian:
мува у супи
— something which ruins or spoils everything else, or makes it less pleasant
Serbo-Croatian:
muha u juhi
— something which ruins or spoils everything else, or makes it less pleasant
Serbo-Croatian:
muva u supi
— something which ruins or spoils everything else, or makes it less pleasant
Spanish:
jarro de agua fría
— something which ruins or spoils everything else, or makes it less pleasant
Swedish:
smolk i glädjebägaren
— something which ruins or spoils everything else, or makes it less pleasant
Swedish:
(en droppe) malört i glädjebägaren
— something which ruins or spoils everything else, or makes it less pleasant