ngu như bò
What does ngu như bò mean? ngu như bò is a Vietnamese moderate that translates to “dumb as an ox / stupid as a cow” in English.
Literal Translation
stupid like cow
Meaning & Usage
"dumb as an ox / stupid as a cow"
The standard Vietnamese simile for stupidity. Cows in Vietnam are draft animals — strong, slow, and incapable of independent thought. Being compared to one means you have the mental agility of something that chews cud and stares blankly.
Examples in the Wild
A teacher exasperated with a student: 'Giải hoài không ra, ngu như bò!' (Can't solve it no matter what, stupid as a cow!)
When to Use It
Context
- Casual conversations with friends
- Informal settings where profanity is accepted
- Direct confrontation (use with caution)
Avoid
- Professional or formal settings
- Job interviews, meetings, or customer-facing situations
Cultural Context
This is one of those insults that's so common it's almost a proverb. Teachers have been known to say it to students (controversially). Parents say it to children. Friends say it constantly. The cow is Vietnam's default metaphor for dull-witted obedience, and unlike 'con bò' (calling someone a cow directly), this simile form feels more colloquial and less confrontational.
More in Vietnamese 🇻🇳
View all →bê đê
“fag / queer”
Derived from the French word 'pédéraste'. It is the most ubiquitous term for a gay man or an effeminate male in Vietnam.
xạo lồn
“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.
địt mẹ mày
“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.
đm
“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.
mẹ mày
“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.
địt mẹ
“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.
mặt lồn
“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.
đồ mặt dày
“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.