To perform something very well until the very end making it count for nothing.
The 2007 New England Patriots were on track for a perfect season when they "pulled a Belichick" and lost to the Giants.

"Ha, Frank was beating me really bad at pool until he pulled a Belichick and accidentally sank the eight ball"
by Corey Moore February 22, 2008
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To use your tongue on her when it’s getting intense foreplay
It was getting hot n heavy I gave her the Steve Belichick her eyes rolled in the back of her head
by Just2handsum October 12, 2023
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1. Being forced out of a leadership position (e.g. Head Coach) to take a lower, less prominent job with a much lesser rival company—the ultimate reverse power play to show how soft and weak of a leader you are.

2. When Belichick cleans up for anything!!—Nantucket weekends, Miami Gronk parties, what have you...
Damn. Jason Garret joined the Giants as their OC!?!?!?....what they tryin’ to do!?!?...run a Reverse Belichick?
—overheard at an NFC East watch party!
by Wood side!!!!! October 6, 2020
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1. Being forced out of a head coach position to take a lower, less prominent job with less power at a rival team—the ultimate reverse power play to show how soft and weak you are.

2. When Bill Belichick cleans up for anything!
Damn...Jason Garrett joined the Giants as their OC!?!? What they tryin’ to do—run a Reverse Belichick???
by Wood side!!!!! September 29, 2020
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