Breaking point: Oldest son presents inside look at Mike Gundy

Gavin Gundy, Mike's 24-year-old son, expressed his frustration on Instagram last week in a long rant.This was building up in Gavin Gundy’s mind. For years.

Usually the oldest son of Mike Gundy shrugs it off when he views critiques of his father online, but after seeing repeated shots fired following Oklahoma State’s 29-22 loss to TCU, Gavin hit his breaking point.

He then wrote an explicit, 220-word message on his Instagram story in response to the critics. He knew it may start controversy, he knew his father would probably see it, but the only thing Gavin regrets is using profanity.

“To be honest, the general message of what I put out there, I do not regret,” Gavin told The O’Colly in an…