Millennial Michael Che just got a lesson in writing about Gen Z, thanks to social media critics who accused his “Gen Z Hospital” sketch of placing African American Vernacular English (AAVE) in the mouths of “Saturday Night Live” cast members and calling it comedy.

Che, 37, initially thought the sketch had simply bombed — but got another impression after reading social media.

I’m so tired of nonblack people throwing random AAVE terms in their sentences and calling that horse s— ‘Gen Z language,’” one Twitter user wrote Saturday night.

In the sketch, host Elon Musk played a doctor who’s caring for the “bestie” of five stereotypical Gen Z folks portrayed by Bowen Yang, Kate McKinnon, Heidi Gardner, Mikey Day and Ego Nwodim.

But some social media users noted the racial connotations of such language.

‘SNL’ and his new sketch show suggest otherwise.

‘SNL’ and his new sketch show suggest otherwise.

Gen Z Hospital was making fun of AAVE,” he wrote.

Gen Z Hospital was making fun of the young social media crowd that appropriates & misuses AAVE on TikTok & Twitter all day.

Gen Z Hospital was making fun of AAVE.

Gen Z Hospital was making fun of the young social media crowd that appropriates & misuses AAVE on TikTok & Twitter all day.

“I’ve been reading about how my ‘gen z’ sketch was misappropriating AAVE and I was stunned cause what the f— is ‘AAVE’.

Turns out it’s an acronym for ‘African American vernacular english.’ You know, AAVE.

Review: Elon Musk hosting ‘SNL’ was a gimmicky ratings grab — but not a disaster.

Review: Elon Musk hosting ‘SNL’ was a gimmicky ratings grab — but not a disaster

“Look, the sketch bombed

I’m used to that,” continued Che, star of “That Damn Michael Che,” a new sketch series on HBO Max

I love aave

Aave to the moon!”

Seeing some yuck reactions to Black Twitter calling out SNL's Gen Z Hospital sketch for appropriating AAVE as Gen Z talk

Quick reminder that AAVE is a rule-governed dialect, just like all other natural languages

And finally, there was the guy who explained it further: “Quick reminder that AAVE is a rule-governed dialect, just like all other natural languages.” He even provided a slide