Reference to Jin's catchphrase as he forcefully equips Humagear who reach singularity with Zetsumeriser.
From EP1
Gut-buster Tarou: "My job... is to make people laugh!"
Jin: "Nuh-uh, you're wrong. Your job now is to destroy humanity."
Adding namesake tag because that's basically what makes the joke, as the "Jin" in Jingei(迅鯨) is the same as Jin's name (迅).