In front of a home crowd of 79,000 at MetLife Stadium and a primetime television audience of 20 million, Jets quarterback Mark Sanchez collided with the backside of his teammate Brandon Moore and fumbled the ball, which was recovered by the Patriots’ Steve Gregory and returned for a touchdown. The play was the centerpiece of a disastrous sequence in the second quarter, as the Jets lost three fumbles and the Patriots scored three touchdowns—one each on offense, defense, and special teams—all in the span of 52 seconds of game time; in that quarter, the Jets held the ball for over 12 minutes, but were outscored 35–3. The game and the so-called “butt fumble” in particular are remembered as the low point of the Jets’ 2012 season.
Sometimes Wikipedia is scary. Other times, it's brilliant. This is neither of those times.
From "Wiki pages that really exist", I present a page dedicated to "butt fumble." Enjoy.