Don't be mamus is a derivation of the Spanish Expression "No Mames" or the softer version "No Manches" This expression is widely used in Oaxaca de Juárez, Mexico to indicate that someone is taking advantage of you in some way. It can also portray the sense that someone is exagerating some point. It also can be used to mean "really?" or "you don't say" Additionally it has been used to express an informal greeeting such as "hey" or "what's up?" or in departing a "goodbye".
Someone taking advantage of you. "They charged me fifty dollars for the repairs" Response: "Don't be mamus"

Greeting...said as one approaches friends: "Don't be mamus"

Goodbye...as one leaves the presence of friends "Don't be mamus"

Surprise..."I won the lottery" Response "Don't be mamus!"
by el profe idiomas August 11, 2012
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Usually very plump and tends to eat and drink alott of mango juice. Likes sellu cafe and chicken sandwiches. Big fan of kundi curry
Hey loook its manoj mamu with his cerelac pfp!
by nindeappam January 29, 2023
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Mamu Loujie is the most hottest mamu out there!! he can be your bestfriend and mamu at the same time! He likes to stare at your soul and then make you cry. He is a very sweet and loving person inside!!
Omg, is that Mamu Louijie ?! I love him!!
by ilovemamu143 February 16, 2021
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all the english girls named mämmi are mamu
by aleksanterirz February 24, 2022
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