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In Mexican slang, it means something like "insolent little douchebag", "absurd fuckhead", or "deliberately, and often arrogantly, uncooperative".

It's highly inaccurate to say it simply means "annoying person", "someone who does something stupid", or even "snob". It can be used to describe an annoying person since an absurd, arrogant asshole will of course be annoying, but annoyance is such a subjective and broad notion and mamón does not come close to encompassing it completely, so it's a flawed definition. Same thing goes for 'doing something stupid' or 'snob', and to these add the fact that there are slang words for each of those that are several times more fitting; like pendejo or fresa, respectively. Although it would be perfectly fitting to call a snob a mamón if he or she has the appropriate attitude, but not a simply someone who does dumb things since pendejo covers that.
- That little mamón thinks he's hot shit with all his little bullshit.

- I used to hang out with him but then he started being a little mamón.

- No seas mamón. No mames, wey.
mamón by cerveza! December 22, 2008
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In Spanish, somebody who likes to drink/suck, also refered as a blowjob lover
Petinatto is a mamón, and his wife a mamona
mamón by Anonymous May 17, 2006
Related Words
mamon • mamone • mamona • Mamoneis • mamono • Mamonaise • mamonazo • Mamonde • mamongas • mamoni
A man fond of sucking other men´s cock
Buen mamón busca macho con rabazo

Good sucker looks for male with big cock
mamón by fonsucu June 12, 2008
Give the baby her mamón to stop her crying
Mamón by HispanicBisexual December 29, 2020
a snobish person or show off, often thinking he is better than others
carlos is such a mamon he won't even call me anymore
mamon by Anonymous October 24, 2003
not cool, or is when somebody does an stupid action.
Este guey es un mamon, acaba de hacer una pendejada.
mamon by Kevin Brian McFarlane October 13, 2003
spanish for sucker. Also can be used the superlative mamonazo but then turns into a positive meaning between friends.
That guy is a sucker, he's always trying not to work.
Ese tío es un mamón, siempre anda intentando no trabajar.
mamon by Picrico August 9, 2004
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