Elon Musk and Grimes might have broken up last year, but it was recently revealed that the couple secretly had a third child and the name of the baby is making waves online, leading fans to make fun of it.

According to Billboard, the CEO of X, formerly known as Twitter, will be releasing a self-titled biography written by Walter Isaacson.

In the upcoming book, it was revealed that the couple had a new son whom they named Techno Mechanicus and they gave him the nickname Tau.

As of this writing, there are still no details regarding the baby and it's unsure whether there will be more information about him in the book, which is scheduled to be published on September 12.

The New York Times have already dropped a review of the upcoming biography.

Online Fans Made Fun Of Grimes, Elon Musk's Baby's Name

After the news went viral on social media, fans immediately took to X to react regarding the name of the ex-couple's baby.

"Anyone naming their kid 'techno mechanicus' is pretty funny," one wrote.

"Imagine going yo school and your name is techno mechanicus,, and mind u it's not even the worse one," another one wrote.

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"techno mechanicus sounds like a DJ who only does dinosaur themed parties," another one wrote.

Elon Musk himself appeared to have given an explanation behind the name in reply to one post online, as he wrote "Tau Techno Mechanicus Circumference/Diameter."

Grimes, Elon Musk Family

Grimes and Elon Musk were in a relationship for three years and aside from Techno Mechanicus, they also share two other children.

"We are semi-separated but still love each other, see each other frequently and are on great terms," Musk explained of their relationship.

He added that one of the main factors of their separation was due to their work schedule as he works for SpaceX and Tesla in Texas while the singer focuses on music in Los Angeles.

The first one is X AE A-XII, also known as X, and Exa Dark Sideræl, known as Y. Their firstborn was welcomed to the world in May 2020, while the second one was born via surrogate in 2021.

Aside from Musk's three children with Grimes, he also has six kids with his ex-wife Justine Wilson.

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