Shortly after Notre Dame went down 31-7 in the third quarter vs. Ohio State, Irish fan Shane Gillis tweeted out his frustration on social media. Here's more:

We got a glimpse of what that nightmare reaction was like thanks to comedian Shane Gillis, who is a big-time Notre Dame fan. Gillis took to social media in the second half and summed it all up with a single four-letter word. " [Expletive,]" Gillis said .

Shane Gillis is one of the many celebrities who roots hard for Notre Dame, so the comedian who got under Nick Saban’s skin wasn’t exactly happy with the result of Monday’s national championship game, in which Ohio State took down the Fighting Irish 34-23.

By the time the meeting concluded, emotions had run high, tears had been shed—and Ohio State had been born anew. The Buckeyes are national champions, completing their run to the program’s first title since 2014 with a 34-23 victory over Notre Dame on Monday night.

In the first 12-team College Football Playoff bracket, the Ohio State Buckeyes were the last team standing. Here are our takeaways from the game.

Jerome Bettis and Joe Montana headline Notre Dame fans at Monday's CFP championship game vs. No. 8 Ohio State. Here's more: