QB cadences are extremely interesting. Since I see A LOT of Giants games, I hear Eli yell "Omaha! Omaha!". What that means is, the snap count is now live. So if the play is 42 y flat sluggo on two (not a real play), Eli will come out and go, "redddd 90...red 90...hut...hut hut....green 18....green 18....Omaha! Omaha!" at this point, the snap count is in effect, "green 18...green 18 set...hut hut!"after the 2nd hut would be the snap.
In my HS it was pretty simple. It was always "green 18" unless we audibled. We numbered our gaps on offense from 1 to 9, so our audibles would tell us which way the play was going. We ran the Deleware Wing-T, so we mostly ran. Thus our audibles were all runs. "Red 90! Red 90!" that's a run off left end. "Redddd 10! Redddd 10!" that's a run off right end. You get the drift.
What I had most fun with though (lineman bias) was the dummy calls on the line. Based on the defensive front, the linemen had calls they had to make...
Goin: means you were pulling (guard or tackle)
Staying: means you weren't pulling, but the backside lineman still needs to seal the edge
X: the tackle blocks down and the guard pulls shallow and hits the tackle's man
Blue: the guard and tackle down block in opposite directions
Very simple calls, so to ensure nobody figured out our signals, everybody just started yelling stuff. My senior year was the best because I played center, so I'm only in the huddle for the first time the QB calls the play (they call the play twice in the huddle...."ex: Wing Right Tight, 21 sweep on two (center leaves the huddle and gets on the ball) wing right tight, 21 sweep on two ON TWO, ready? BREAK." I'd be out there scanning the defensive front and when the other 4 linemen would come to the line, I'd point to the Mike Backer and just start yelling "RUBBER BABY BUGGY BUMPER!! RUBBER BABY BUGGY BUMPER!!! BIG MAC BIG MAC!!!" we'd all yell the most insane stuff. Great times.
Part owner of the 13-time world champion Green Bay Packers