Chicago area Chicano slang. Roughly translated into English, it means "locker room talk." It's a combination of "machismo" which means "a strong or exaggerated sense of masculinity" and "chisme" which means "gossip."

It can also mean "male bonding."
I overheard some machisme about ole girl yesterday. She's a real freak!!

Let's meet up this weekend for a few beers and some "machisme."
by Bizy Boy 21st & Oakkley October 25, 2011
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Ambidextrous sexism: supremacy of male sex, supremacy of masculinity, inferiority of female sex and widespread hatred of female sex.
I hate machism.
by Roscanbi March 22, 2023
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Supremacy of the male sex, supremacy of masculinity and inferiorization of the female sex.
I am against machism.
by WWW9999 March 13, 2023
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