#8 Pop
What it means: When the crowd suddenly erupts into vigorous cheering, usually with great excitement.
Also known as: Reaction, as in the crowd's reaction, and 'cheap' pop if the crowd's response is triggered by something easy for them to engage with, like a mention of their local sports team.
Likely origin of the term: No one can say for sure who first uttered the term, but it seems to have originated during the 1950s when pro wrestling began playing to an increasingly televised audience.
In pro wrestling, a pop refers to a sudden eruption of cheers from the audience. For example, Undertaker always gets a tremendous pop when he makes his appearance, and live crowds will often pop if their town is mentioned in a favorable light.
Pops are important in wrestling because the backstage officials often take note of who gets pops, who doesn't, and whose pops were the loudest.
'Pops' are generally reserved for when WWE legends make an appearance. The Royal Rumble and WWE Hall of Fame eventwitnessedss a lot of such fan reactions.