So, how does a man who calls himself the "Demon King" celebrate winning the WWE Universal Championship???
By hanging out with Mr. and Mrs. Demon King.
We got Finn Balor out in NYC moments ago -- and he told us there was no insane raging at the clubs after he beat up Seth Rollins at "SummerSlam" at the Barclays Center in Brooklyn.
BONUS -- He also told us what special meal he chowed on during the victory celebration with the folks.
There are reports Balor suffered an injury to his right arm Sunday night -- but as far as we could tell from the clip, he didn't appear to be wearing a brace ... then again, he was wearing a jacket.
Hopefully, he's okay.
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