mặt dày mày dạn

[mat˧˨ʔ zɐi˨˩ mɐi˨˩ zaːn˧˨ʔ]idiom, moral

What does mặt dày mày dạn mean? mặt dày mày dạn is a Vietnamese moderate that translates to “shameless to the core / utterly brazen” in English.

thick face brazen brows

01

"shameless to the core / utterly brazen"

An idiomatic expansion of 'mặt dày' (thick face) adding 'mày dạn' (bold/brazen eyebrows). A face so thick and expression so bold that absolutely no moral shame can penetrate it.

Scolding an unrepentant scammer: 'Cái đồ mặt dày mày dạn, nói thế mà vẫn không biết nhục!' (You utterly shameless thing, I say that and you still feel no disgrace!)

Context

  • Casual conversations with friends
  • Informal settings where profanity is accepted

Avoid

  • Professional or formal settings
  • Job interviews, meetings, or customer-facing situations

Cultural Context

Vietnamese loves four-word idiomatic compounds (thành ngữ). Swearing in a four-word compound format instantly makes the insult sound educated, historical, and unarguable. You don't just have a thick face, you embody the poetic, time-honored archetype of a shameless bastard. Used by elders to absolutely destroy a younger person's defense.

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3 / 5homophobic, loanword

bê đê

[ɓe˧˧ ɗe˧˧]

fag / queer

Derived from the French word 'pédéraste'. It is the most ubiquitous term for a gay man or an effeminate male in Vietnam.

4 / 5action, sexual

xạo lồn

[sɐw˧˨ʔ lon˧˥]

bullshitting / talking out of your ass

Lying, boasting, or fabricating stories to look impressive. 'Xạo' means lying/fake; 'lồn' is added purely as an aggressive metric of magnitude.

5 / 5sexual, familial

địt mẹ mày

[ɗit˧˨ʔ me˧˨ʔ mɐi˨˩]

fuck your mother / motherfucker

The full Northern form with the target pronoun attached. If 'địt mẹ' is a grenade, adding 'mày' is pulling the pin and throwing it directly at someone's face. This isn't venting frustration — this is declaring war.

3 / 5internet, abbreviation

đm

[ɗe˧˥ em˧˥]

fuck / wtf

The texting abbreviation of 'đụ má.' Two letters that every Vietnamese person under 40 can decode instantly. It's become so ubiquitous in online spaces that it functions less as profanity and more as punctuation — surprise, frustration, emphasis, even approval.

4 / 5familial, exclamation

mẹ mày

[me˧˨ʔ mɐi˨˩]

your mother / fuck you

Just two words — 'your mother' — but in Vietnamese, this is a complete insult. You don't need to specify what about their mother. The implication hangs in the air, and everyone fills in the worst possible meaning. It's the loaded gun of Vietnamese profanity: the trigger is pulled by context.

5 / 5sexual, familial

địt mẹ

[ɗit˧˨ʔ me˧˨ʔ]

motherfucker / fuck your mother

Northern Vietnamese equivalent of 'đụ má.' Uses formal 'mẹ' instead of casual 'má,' making it more severe. The gravest insult in Vietnamese culture.

5 / 5anatomical, sexual

mặt lồn

[mat˧˨ʔ lon˧˥]

cunt-face / fuckface

Your face looks like female genitalia. It's as crude and direct as it sounds — a pure shock-value insult that combines the face (your public identity) with the most taboo body part. There's no subtlety here, just maximum offense per syllable.

2 / 5insult, moral

đồ mặt dày

[ɗo˨˩ mat˧˨ʔ zɐi˨˩]

shameless person / thick-skinned bastard

Your face is so thick that nothing — no embarrassment, no social pressure, no shame — can penetrate it. In a culture where 'mặt' (face) is everything, having a thick one means you've abandoned all social contracts.