In Clone High (2003), Principal Scudworth, voiced by co-creator Phil Lord, enslaves people to construct monuments for him under poor working conditions. This is alludes to how poorly Lord treats the crews of his productions in real life.
In The Flash(2023) the titular character tells a nurse “you should talk to someone about your mental health, sorry the justice league isn’t good at that part yet.†This is a reference to Ezra Miller.
In MIB2 (2002) the flying car is piloted by a PS2 controller which was pretty silly at the time considering that a game controller likely wouldn’t be used to pilot such complex machinery.
In Half Girlfriend (2017), in spite of calling the actual Bill Gates who has visited India multiple times, a fake AI generated version of the Bill Gates was used, a reference to the fact that Indians love pirating Windows and its softwares.
In the movie Blank Check (1994), the 33 year old female lead passionately kisses the 11 year old protagonist on the lips. This actually ok because he’s secretly a 300 year old anime vampire with stunted growth.