Smith, Shumpert pull off 'double-oop'

An alley-oop?

Been there. Done that.

But a double-oop? Whoa! Don’t see that too often.

But with 2:29 remaining in the Knicks’ 101-79 blowout victory over the Pistons, J.R. Smith and Iman Shumpert pulled off the rare double-oop.

Smith and Shumpert got out on a 2-on-1 fastbreak in transition. Smith threw a lob pass to Shumpert, but it was too far away from the rim, so Shumpert looked back and passed to an elevating Smith for a one-handed slam that brought the Garden crowd to its feet.

“That’s the first time I’ve ever done that in a game,” Shumpert said. “I’ve done that in a pickup game, but never in a real game.”

“Yeah, it was cool, but it got the crowd into it. That was the best part.”

So how did it go down? Allow Shumpert to explain:

“[J.R.] threw it a little early, the oop, and when he saw that I was just gonna go get it, I sort of looked at him and his eyes got big, so I figured I knew what he wanted,” Shumpert said. “Usually when me and J.R. are on the breakaway, we’re usually thinking the same thing. And it usually works out.”

• The Knicks outrebounded the Pistons 54-30 and outscored them in the paint 52-30.

Tyson Chandler had 15 points and tied his season-high with 17 rebounds in 30 minutes. It was his 14th double-double of the season -- four less than he had all of 2010-11.

“I just wanted to establish myself and attack the rim and the glass,” Chandler said.

Amare Stoudemire added 17 points and eight rebounds in 25 minutes before hurting his back.

• The Knicks committed 22 turnovers -- eight in the first quarter alone. Jeremy Lin had seven, while Baron Davis added four.

“The turnovers are just ridiculous,” interim coach Mike Woodson said. “I think we’re a bit too nonchalant with the basketball. So we will go back and break down this game tape and show Jeremy and Baron where the mistakes were being made.”

• The Knicks’ bench -- better known as “Mob Deep” -- poured in 39 points, including 30 in the second half and all 25 in the fourth quarter. Smith led the way with 14 off the pine.

• The Knicks are now 15-6 when scoring over 100 points and 19-2 when leading after three quarters.

• The Knicks held the Pistons to 36.8 percent shooting and combined for 13 steals. They are 15-1 when holding their opponent under 90 points. In their last seven games, they’ve held their opponents to 86.9 points per contest and gone 6-1 over that stretch. Must be the “Woodson Effect.”