The new celebrity baby name that has the world talking.

Actress Amber Tamblyn, best known for her role in The Sisterhood of the Travelling Pants, has announced the birth of her baby girl. The name she’s shared on Instagram has the whole world talking.

The 33-year-old made the announcement with an Instagram video of kicking baby feet, complete with the hashtag:  #TheFutureIsFemale

Then the name, which has everyone in giggles…

“Dauphinoise Petunia Brittany Scheherazade Von Funkinstein Mustard Witch RBG Cross Tamblyn-Bey jr.”

David and I are proud to announce the birth of our daughter, Dauphinoise Petunia Brittany Scheherazade Von Funkinstein Mustard Witch RBG Cross Tamblyn-Bey jr. #TheFutureIsFemale

A post shared by Amber Tamblyn (@amberrosetamblyn) on Feb 21, 2017 at 11:45am PST

This is Tamblyn’s first baby with comedian husband David Cross, 52. The pair were married in 2012 and Tamblyn announced her pregnancy in October last year via an article she wrote for Glamour. 

In the article, Tamblyn wrote about her experience as a victim of sexual assault. That it’s an experience shared by her mother, and one she doesn’t want for her daughter.

Don’t kiss the baby, and other things that people should know. Post continues below.

Almost exactly four months later, and we are welcoming ‘Dauphinoise’…

More than likely, the name’s a joke.

But the little girl – whatever she’s called – is never going to live it down.

(“Mustard Witch” especially, has captured the imagination of fans the world over.)

Mustard Witch is going to be the first intellectual, feminist toddler to collect baseball cards like her dad! Love you @ambertamblyn ❤ https://t.co/au9RT2gOEJ

— Aviva Yael (@Veevers) February 21, 2017

@ambertamblyn & @davidcrosss‘s daughter’s not-name is the best ever.

— luna margo ???? (@imaginarymargo) February 22, 2017

Amber Tamblyn reveals daughter’s name, is trolling all of us. https://t.co/Cf3CN7p8IP pic.twitter.com/xrn7ZgUFKe

— Metro US (@Metro_US) February 22, 2017