Red 69 Brown 3 Hut Hut Hut.
No, not the demented cries of an oversexed Premier League footballer, but rather the snap count which precedes each play in American football.
Of course, you'd be familiar with snaps, huddles, linebackers, and scrimmages, if you were a die-hard Super Bowl fan.
Or just enjoyed an offensive play or two on Madden. I fall into the latter bracket, I'm afraid, so tend not to appreciate all of the intricacies of gridiron.
Luckily for me, then, EA's five-star Madden NFL 11 for iPhone last year debuted GameFlow, an AI-controlled system for deciding the most appropriate next play.
This venerable series is back on iOS - or at least it will be later in August - complete with last season's brilliant Total Defensive Control and Hot Routes for passing, running, and defence.
However, the major additions to this year's iteration of Madden are playbooks unique to the individual teams, and the Arcade mode, essentially designed for newbies to the sport.
Madden NFL 12 for iPhone will touchdown on the App Store on 30th August. Get your helmets ready now.