The upback is who I was thinking of. Interesting you would use the term "head bob" in light of what the player's coach is being credited with:
http://sportsillustrated.cnn.com/2012/writers/andy_staples/11/10/texas-am-alabama-johnny-manziel/index.htmlThe Aggies special teams units didn't have the best night. They missed an extra point and a field goal. But when they needed to put away the win, special teams coach Brian Polian had just the call. After the Everett interception, Alabama's defense stopped Texas A&M on three plays, forcing a punt on fourth-and-one. Well aware that McCarron had shredded LSU's defense on a game-winning drive a week earlier in Baton Rouge, the Aggies did not want to give McCarron the ball. "We can Bob him," punt team members told Polian. In Polian's parlance, a "Bob" is a double cadence designed to draw the punt return team offsides. Polian ordered the "Bob" and watched as the left side of Alabama's line jumped when they thought A&M would snap. Flags flew. The Aggies pointed at the Crimson Tide, and when referee Tom Ritter indicated the penalty was on Alabama, the Aggies celebrated. Swope grabbed Kingsbury and lifted him off the ground. The band played. The Yell Leaders yelled, and the rest of Bryant-Denny Stadium fell silent. When he returned to the locker room, Polian, who coached at Stanford in 2010-11, turned on his phone to find it flooded with text messages. "I've had that forever," Polian said. "About 20 Stanford kids texted me and said 'You Bobbed them!'"