Forget Rebecca Black, Patrice Wilson thought. If I can get the 411 on Allison Gold, that would be quite the Geisha in my Chinese restaurant. There might even be a promotion in it for me. Maybe a record label in California or New York.
"If this Joker guy was Soh's Mart, he'd have had us bring a bigger car"
I think this hints to the backstory that the Joker made them think that Soh's Mart (probably the fictional equivalent to Wal-mart in this world) was backing them and that he was part of it somehow. That makes sense why they would follow him, since it is kinda sus to follow just "The JOker" when you don't know anything about him.
In his new body, the Brain confesses to Mallah he is in love with him. When Mallah reveals he feels the same way, the two kiss. However, Robotman's body, having developed sentience and vowed never to be enslaved by a brain again, triggers a self-destruct mechanism and explodes as they kiss.