Loona jokingly snarks "That's what she said." after hearing Blitzo's accidental innuendo, a phrase that is widely attributed to the popular TV show franchise.
Blitzo saying "If you're good at something, you should probably capitalize." could be a reference to the Joker saying "If you're good at something, never do it for free."
While Striker is performing "Sweet Victory" a large representation can be seen of him in the mountains, a reference to the "Screaming Cowboy" meme derived from Kirin J Callinan's music video, Big Enough.