The explosive crowd reaction when something exciting happens. A big return, a surprise debut, a title change. The bigger the pop, the more over you are. The loudest pop in wrestling history is still debated, but Stone Cold's glass shattering at any point between 1998 and 2001 is a strong contender. Wrestlers live for pops the way musicians live for applause.
"The roof nearly came off the building when his music hit. That pop was nuclear."