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John Stamos and Matt Lauer swap slaps on TODAY: Have mercy!

Things got physical — and funny — when John Stamos stopped by TODAY Monday morning!
/ Source: TODAY

Things got physical — and funny — when John Stamos stopped by TODAY Monday morning!

The actor explained that in his new Fox series, "Grandfathered," his character suddenly learns that he is, in fact, a grandfather — he then promptly slaps another character just for asking about it.

MORE: John Stamos talks rehab on TODAY: 'I made a choice and I'm just so grateful I did'

"Is it harder, as an actor, to be the guy who slaps someone or the guy that gets slapped knowing it's coming," anchor Matt Lauer asked.

And, boy, did he get his answer!

John Stamos and Matt Lauer -- slap
TODAY

But Matt can give as good as he gets:

John Stamos and Matt Lauer -- slap3
TODAY

"That was hard!" John shot back.

John Stamos and Matt Lauer -- slap2
TODAY

So what did Matt think after getting some firsthand (across the face) experience? Well, he took it like a pro, but couldn't help but wonder if he winced.

"You winced," his sparring partner said. "A lot."

Matt rubbed his cheek and admitted, "It actually hurts."

At least he didn't get knocked out of his seat, like a certain weather-and-more man we know.

TODAY

Watch the clips to see all of the fun! And catch the series premiere of "Grandfathered" Wednesday 8 p.m. ET on Fox.

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