mobtagging

In World of Warcraft, it's done by doing:
1. Have a group follow you into a dungeon
2. Leave the group while you're pulling mobs
3. Max your DPS to get the most xp and kill all the mobs

Level 15: "Wanna go mobtagging in Dead Mines?"
Level 110: "Sure"

C9

"C9 is when you get off the point, C9 is when you play the game, c9 is when you cap a point, get off a point, when you cap 2 cp, c9 is when you die, also when you win a game, lose a game, when you log in, and when you log out, also when you buy items in a shop, c9 is also when you talk about Overwatch in general in real life."

-XQC 2017

C9 LUL