#4 Stone Cold Steve Austin says "What?"
The Gimmick in a Nutshell: Stone Cold Steve Austin said "What?" and the fans said "What?" Repeatedly.
Chalk this one up to the fans who bought tickets being entitled to chant whatever the heck they felt like!
Stone Cold Steve Austin was a massive babyface, but for some reason, the WWE decided to turn him heel by aligning him with Vince McMahon. In order to get Austin over as an intimidating jerk, he would scream "WHAT?" whenever someone said something he did not like.
The crowd, for whatever reason, picked up on the habit, and would then chant "What?" nearly every time someone spoke in front of the live audience. At first Vince McMahon hated it, but eventually he embraced it, no doubt aided by the millions of dollars generated by t-shirt sales.
Why the gimmick managed to work: Stone Cold Steve Austin's popularity and charisma are not to be understated. Also, it was fun to say, and the crowd still occasionally breaks it out when they don't want to hear someone speak.