It’s the most blunderful time of the year.

Thanksgiving falls on Nov. 22, a delicious coincidence.

For on that date in 2012, the New York Jets were playing host to the New England Patriots and arguably the worst — greatest? — gaffe in NFL history took place.

Mark Sanchez took the snap in the second quarter at MetLife Stadium and set forward the ultimate calamity: the butt fumble. ESPN offered an oral history in 2017.

Sanchez turned the wrong way, ran into guard Brandon Moore’s backside and as Patriots safety Steve Gregory said, “It’s ‘What came first, the chicken or the egg?’ Moore’s getting driven back, Sanchez has his eyes closed running forward and there’s a collision. (Vince) Wilfork was a man-child out there, especially in run support, and he just drove that lineman back, and Sanchez somehow found Brandon Moore’s butt as a landing spot. Mark face-planted into the back of Brandon Moore’s butt.”

The fumble wound up in Gregory’s hands and he returned it 32 yards for a touchdown that made it 21-0 en route to a 49-19 romp.

The Jets fell to 4-7 and somehow won their next two games before losing three in a row to finish 6-10.

Sanchez, who had led the Jets to two AFC Championship Games, was injured and missed 2013. That ended his Jets career. He played sparingly with the Eagles in 2014 and ’15 and Cowboys in 2016.

In more coincidence than anything, he will be on the field this Thanksgiving. When Alex Smith went down with his broken leg, the Washington Redskins needed a backup and signed Sanchez.

https://www.youtube.com/watch?v=82RIfy-gRa4

A week after the play took on its own legend, Sanchez said, “It’s embarrassing. You screw up the play and I’m trying to do the right thing. It’s not like I’m trying to force something. I start to slide and I slide in the worst spot I possibly could—right into Brandon Moore. I guess (I was) more stunned than anything. Just like a car accident. I was like, ‘Whoa. What just happened?’ Then, the ball’s gone. It was weird.”

Weird, no? It was …