How to Say ‘Don't be an idiot.’ in Mexican Spanish
No seas pendejo.
noh SEH-ahs pen-DEH-ho
[noh SEH-ahs pen-DEH-ho]
💬 Usage Tip: Change the ending to match who you're talking to: say no seas pendeja to a woman. The same goes for menso/mensa and estúpido/estúpida.
Phrase Breakdown
No
[noh]
do not
Used to form the negative of the verb have.
No tengo un coche ahora.
I do not have a car now.
seas
[SEH-ahs]
be
Form of 'ser' used in negative commands to 'tú'.
No seas grosero.
Don't be rude.
pendejo
[pen-DEH-ho]
idiot
Used to insult someone’s intelligence
Deja de actuar como un pendejo.
Stop acting like an idiot.
Get the Full Learning Experience
This lesson is just a preview. Download PrettyFluent to practice pronunciation, roleplay conversations, and master vocabulary with spaced repetition.
Pronunciation Feedback
AI-powered feedback on what you say out loud
Spaced Repetition
Retain vocabulary long-term with smart practice
Immersive Roleplaying
Practice real conversations with AI partners
Lessons for Your Situation
Request lessons tailored to your specific needs
Get Full LessonWhat Learners Are Saying
“Moved to Mexico City for work and needed to get conversational fast. Two weeks of daily practice and I was ordering tacos and negotiating with my landlord in Spanish.”
David K., 35, Startup Founder
“I spent a month backpacking through Colombia and this app was a lifesaver. The lessons meant I could handle real situations from day one.”
Rachel T., 26, Travel Blogger
“Learning a language has never been as immediately impactful. Now I can charm the locals and navigate the food scene like a boss.”
Alex M., 42, Software Engineer