What Does 미꾸라지 (Mikkuraji) Mean in Korean? The Slippery Loach
Written and reviewed by Jun and Jin, native Korean speakers
Published · How we write & review
After this page, you can describe a slippery, blame-dodging person with 미꾸라지 같다 and recognize the proverb about one loach muddying the whole pond.
10-second answer
What does Mikkuraji mean?
미꾸라지 (mikkuraji) is a loach, a small and very slippery freshwater fish. Calling a person 미꾸라지 같다 (mikkuraji gatda, "like a loach") is a criticism: they cleverly dodge responsibility, are hard to control or pin down, or stir up trouble and muddy the waters for everyone.
Quick check — did that land?
1. 저 미꾸라지 같은 녀석 describes someone who is…
미꾸라지 같은 녀석! 미꾸라지는 미끄러운 물고기예요. 책임만 회피하는 사람을 뜻해요.
The Fish Behind the Insult
A 미꾸라지 (mikkuraji) is a freshwater loach: a thin, dark fish about 10 to 20 cm long that lives in rice paddies, swamps and muddy waterways. It is extremely slippery to hold, and it survives dirty, low-oxygen water — it can even breathe at the surface — and burrows into damp mud, which clouds the water around it. Slippery in the hand, muddy in the water: those two habits are exactly what the insult borrows. The same fish is the main ingredient of 추어탕 (chueotang), a traditional loach soup.
The word itself is old. The linguist Cho Hang-beom traces it to an old verb meaning "to slip," plus the small-thing ending -아지 (-aji), the same ending as in 강아지 (gangaji), "puppy" — roughly "the little slipping thing."
See also: 반말 vs 존댓말
Three Ways Koreans Mean It
미꾸라지 같다 (mikkuraji gatda, "to be like a loach") describes a person, and native speakers use it for three kinds of slipperiness. One person can be all three at once.

| What the person does | In plain English |
|---|---|
| Cleverly dodges responsibility or blame | Always slips out of trouble — it never sticks to them |
| Is hard to control or pin down | Slippery — you can't get a grip on them |
| Muddies the water: stirs things up and spoils the situation for everyone | A troublemaker |
Slippery is the common thread. The fish is hard to catch, and the person is hard to hold accountable.
Quick Examples
저 미꾸라지 같은 녀석.
jeo mikkuraji gateun nyeoseok.
That slippery guy.
Literally: that loach-like fellow
녀석 (nyeoseok) is an informal word for "guy" or "fellow." 같은 (gateun) makes 미꾸라지 an adjective: "loach-like," placed before the person it describes.
저 녀석은 미꾸라지처럼 이 문제를 빠져나갔어.
jeo nyeoseogeun mikkurajicheoreom i munjereul ppajyeonagasseo.
That guy slipped out of this problem like a loach.
Literally: that fellow, like a loach, slipped out of this problem
처럼 (cheoreom) means "like." 빠져나가다 (ppajyeonagada) is "to slip out of" or "get out of." The casual -어 ending (no -요) makes this sound like something you say about someone to a friend — see 반말 vs 존댓말.
The Proverb: One Loach Muddies the Whole Pond
The best-known loach saying is 미꾸라지 한 마리가 온 웅덩이를 흐린다 (mikkuraji han mariga on ungdeongireul heurinda): "one loach muddies the whole pond." One person's bad behavior spoils things for the whole group — the closest English saying is "one bad apple spoils the barrel."
| Piece | Meaning |
|---|---|
| 미꾸라지 한 마리가 | one loach — 마리 (mari) is the counter for animals |
| 온 웅덩이를 | the whole pond or puddle — 온 (on) means "whole, entire" |
| 흐린다 | muddies, clouds |
The word has relatives. In the news you will meet 법꾸라지 (beopkkuraji) — 법 (law) + 미꾸라지 — for someone who slips through legal consequences. And the fish is not only an insult: a saying about a loach turning into a dragon, 미꾸라지 용 됐다 (mikkuraji yong dwaetda), is used for someone from humble beginnings who made it big.
Common Mistakes
Mistake #1 — Hearing it as "clever" in a good way
Dodging blame cleverly is still dodging blame. 미꾸라지 같다 is a criticism, even when it admits the person is skilled at escaping.
Mistake #2 — Saying it to someone's face
Because it is an insult, it is something you say about a person, not to them. If you ever do hear it aimed at someone present, tone decides how sharp it is — see how 미친 (michin) swings the same way.
Mini Quiz
2 short questions — about 1 minute
2. What does 미꾸라지 한 마리가 온 웅덩이를 흐린다 mean?
3. Is 미꾸라지 같다 a compliment?
Related Knowledge
Learn Next
What Does 미친 (Michin) Mean in Korean?
Another word for a person's behavior that swings between insult and joke depending on tone.
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