Meaning
To behave in a wild, irrational, or foolish manner, often intentionally.
Cultural Background
In Brazil, 'dar uma de louco' is often associated with the 'Malandro' figure—a person who uses their wits to navigate social and economic challenges. It's seen as a survival skill. Portuguese speakers use 'fazer-se de parvo' or 'fazer-se de desentendido' more frequently in formal or semi-formal settings. 'Dar uma de louco' is recognized but feels distinctly Brazilian. In modern Brazilian offices, 'fingir demência' has largely replaced 'dar uma de louco' among Gen Z and Millennials, though the meaning remains identical. In Rio, the phrase can be used more aggressively to mean 'don't try to trick me.' It's often paired with 'tá me tirando?' (are you mocking me?).
The 'Uma' Secret
Always remember 'uma' is feminine. Even if you are a man, never say 'dar um de louco'. It's a fixed grammatical structure.
Sensitivity Check
Be careful using this around people who might be sensitive to mental health topics. It's a very casual idiom.
Meaning
To behave in a wild, irrational, or foolish manner, often intentionally.
The 'Uma' Secret
Always remember 'uma' is feminine. Even if you are a man, never say 'dar um de louco'. It's a fixed grammatical structure.
Sensitivity Check
Be careful using this around people who might be sensitive to mental health topics. It's a very casual idiom.
Regionalism
In the Northeast of Brazil, you might hear 'dar uma de doido' more often than 'louco'.
Test Yourself
Choose the correct form of the idiom for a female subject.
A Maria não queria lavar a louça, então ela _______.
Since Maria is female, 'louco' must become 'louca'. The article 'uma' remains feminine.
Complete the sentence with the correct conjugation of the verb 'dar'.
Ontem, nós _______ uma de louco e fomos para a praia no meio da semana.
The subject is 'nós' (we), so the past tense of 'dar' is 'demos'.
Match the situation to the most likely use of 'dar uma de louco'.
Situation: You see your boss at the mall on a day you called in sick.
Playing the 'crazy card' by pretending to be someone else is a classic use of this idiom to avoid a difficult situation.
Complete the dialogue with a natural response.
A: 'O João disse que não sabia que a reunião era hoje.' B: 'Ah, não acredita nele! Ele só está _______.'
João is pretending not to know, which is the definition of 'dar uma de louco'.
🎉 Score: /4
Visual Learning Aids
Practice Bank
4 exercisesA Maria não queria lavar a louça, então ela _______.
Since Maria is female, 'louco' must become 'louca'. The article 'uma' remains feminine.
Ontem, nós _______ uma de louco e fomos para a praia no meio da semana.
The subject is 'nós' (we), so the past tense of 'dar' is 'demos'.
Situation: You see your boss at the mall on a day you called in sick.
Playing the 'crazy card' by pretending to be someone else is a classic use of this idiom to avoid a difficult situation.
A: 'O João disse que não sabia que a reunião era hoje.' B: 'Ah, não acredita nele! Ele só está _______.'
João is pretending not to know, which is the definition of 'dar uma de louco'.
🎉 Score: /4
Frequently Asked Questions
10 questionsOnly if you have a very close, informal relationship. Otherwise, use 'se fazer de desentendido'.
Generally no, it's considered funny or a bit 'cheeky,' but it depends on the tone.
Not always. It can also mean doing something wild or unexpected for fun.
Dar uma de louca.
Yes: 'Eles deram uma de louco' or 'Eles deram uma de loucos'. Both are used.
Use 'Fingir ignorância' or 'Aparentar desconhecimento'.
Yes, but it's less common than in Brazil. They prefer 'fazer-se de parvo'.
'Dar o migué' is specifically about a fake excuse; 'dar uma de louco' is about the behavior/performance.
Yes: 'Eu vou dar uma de louco'.
Yes, it's the modern, slightly more 'internet-slang' version.
Related Phrases
Dar uma de João sem braço
similarTo pretend to be incapable or ignorant to avoid a task.
Fingir demência
synonymTo pretend you didn't see or hear something.
Dar a louca
contrastTo suddenly lose control or act impulsively.
Se fazer de desentendido
similarTo play dumb.
Dar um migué
similarTo give a fake excuse or lie.
