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Sue Sylvester would be proud!

On Wednesday's Late Night with Jimmy Fallon, Jonah Hill slammed Matthew Morrison after having not one -- but two! -- less-than-friendly encounters.

The funnyman, 27, who recently lost over 40 pounds, claimed Morrison first embarrassed him in a room full of A-listers at a Fox event. "This dude from Glee calls me out!" the comedian said, explaining that Morrison, 32,  jokingly asked Hill if he ever stopped talking.

Then, a few weeks later, the two stars ended up at "some douchey Hollywood party," Hill said, where he attempted to pull a prank and snuck up behind Morrison who was engaged in a conversation with Chace Crawford. Before he could even prank him, Hill overheard his own name being used as a punchline in Morrison's joke.

"Matthew Morrison, you better bring your sh*t next time, dude," the Moneyball star ranted. "I'd like to see him sing his way out of this one!"