Michael Phelps Jokes About His Son Boomer’s Name: ‘He’s Definitely Gonna Be the Cool Kid’

09/02/2016 at 10:55 AM ET

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Andrew Lipovsky/NBC/NBCU Photo Bank via Getty

Michael Phelps‘ son Boomer Robert has been getting almost as much attention as his dad lately.

Between sweet photos taken in the stands at Phelps’ last Olympic competitions to having over half a million followers on Instagram, the newly retired swimmer’s son — who turns 4 months old on Monday — is quite the popular one.

But how did Phelps and his fiancée, former Miss California USA Nicole Johnson, come up with their first child’s name?

“We heard the name, and we didn’t want, like, a normal name,” he told Jimmy Fallon on Thursday night’s episode of The Tonight Show. “And I brought it up to Nicole and she was like, ‘Oh, that sounds kinda cool.’

“Boomer, like boom boom … we didn’t know either. We had no second option — once we picked that, we were like, ‘Yeah,’ ” Phelps, 31, adds with a laugh. “He’s definitely gonna be the cool kid.”

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Boomer is already pretty cool, if his social media following is any indication. Phelps says he runs his son’s account, and Johnson takes a lot of the photos and sends them to Phelps when they’re not together.

“He went from 5,000 followers in late June to … I think I just looked, and he has like 660,000 followers,” the proud dad says. “It’s insane. He’s gotta be the most followed baby in the world!”

“I jumped into the photo [backstage] because I had to grab him, I had to smell his little head,” Fallon says.

“There’s nothing better than a baby smell, it’s incredible,” Phelps adds.

Yep! Got to hang out with @jimmyfallon before my daddy went on the show! #dontbejelly

A photo posted by boomer phelps (@boomerrphelps) on

Trying to do my best #mpface!! Gotta do it for daddy! Love you so much @m_phelps00 !!

A photo posted by boomer phelps (@boomerrphelps) on

Phelps shares that he and his family live in Arizona, and that they have a pretty busy rest of the year coming up between volunteering for the Arizona State University swim team, traveling “here and there,” charitable work — and planning a wedding.

“We’re getting married at the end of the year,” he shares to applause and cheers from the audience. “We have a very busy year. But we’re excited and pumped, and the little man gets to travel everywhere with us, so it’s pretty awesome.”

Jen Juneau

FILED UNDER: Michael Phelps , News , Parenting

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nikki on

Still sounds like a dogs name to me..hope the kid doesnt get teased…i dont think they thought about that

Irish on

I think it sounds like a nickname you give to someone who farts a lot. There are tons of other unique non-normal names.

Jane on

Such a terrible name, they both must be on drugs.