Place it at the end of a setup showing an unpaid bill or an empty wallet, so the demand closes the scene. Follow it with Law & Order Dun Dun for a mock-serious verdict, or add DJ Airhorn if the money finally appears.
About this sound
This 4.6-second clip has Stewie Griffin from Family Guy repeatedly asking where his money is in his high-pitched, British-accented baby voice. The sharp, whiny delivery feels funny and confrontational at once, serious on the surface but absurd coming from a toddler, which makes the demand land like a punchline. It comes from the long-running animated sitcom Family Guy.