It's to signal to his fellow offensive players that they are altering the play at scrimmage in some way, shape or form because he read something on the defense. It also provides a way to make a hard count to try to get the defense to jump the snap.
The present tense of "yell" is "yells".
Archibald Yell has written: 'Archibald Yell papers'
"The range is hot" or how about "Fire in the hole"!
shall/will yell
The past tense of yell is yelled.
dont frek out just stay com and snap your fingers or yell there name that might wake them if not do every thing to wake up then tell them that they sleepwalk and tell them every thing
They yell because they're frustrated and want to dish out they're angryness, and since they cant yell at their husband, they just yell at you
"Yelled" is the past participle of "yell".
Emo yell better than you
Let's spend some tax money honeys
The players are wearing helmets which can make it hard to hear. Especially with all of the background noise. Not to mention you're on a timer and you can't be repeating yourself over and over.
In the joke, "yell-fish" is a play on the words yell and shellfish. A crab is a kind of shellfish and babies yell a lot.