It was a 5-0 win, the biggest ever league victory away from home against their foes and he revealed he's going to celebrate on the team bus with a well deserved beer.
It was a victory which seemed inevitable, Red Devils legend Paul Scholes predicted it could happen on Wednesday night.
And yet it's a once in a lifetime moment for Klopp, Liverpool, and the club's supporters.
The German boss delighted the travelling fans with some delayed gratification, threatening to not give them some fist-pumps after the final whistle - but the delievering in style.
It's true love between the supporters and their head coach, and it's no wonder as he created several records with the stunning win.
The emphatic victory was Jurgen Norbet Klopp's 200th for the club - only Bill Shankly, Bob Paisley, and Tom Watson have more.
But 54-year-old is now the first boss to go seven games unbeaten in the league against the Red Devils.
It's a stunning achievement and shows just how dominant this Liverpool side has been over the last four seasons.
Klopp said after the final whistle: "5-0, I couldn't be happier, it is exceptional. Absolutely outstanding.
"I have a few defeats in my mind which were not necessary but we won today so we drink beer on the way home!"
Liverpool are undefeated in their last 22 games across all competitions and have scored three or more goals in each of their last eight away games too.
Yet even Klopp admitted he was shocked by the demolition of the Red Devils.
"What can I say? Did I expect that? No. What we did in the last third was insane. Pressing high, winning balls, scored wonderful goals," Klopp said.
"The result is insane, I asked if there was one like this in history and if there isn't then it will take a while.
"The players put a nice piece in the book. It is special but we don't celebrate like crazy, we have respect for the opponents.
"We were lucky in some moments, United are not in their best moment."
Manchester United legend Sir Alex Ferguson knocked the Merseysiders off thier perch in his illustrious career.
Right now it looks like it will be a long time before the Old Trafford outfit come close to such a dominant run and they will be thanking their lucky stars Man City were able to win a title last year to halt going further behind the Anfield side.
No wonder Klopp is going to have a beer tonight and Liverpool fans around the world will be raising a glass to him too.