The joke:
What happens if someone slaps you at a high frequency? It hertz
The breakdown:
two words that sound identical but have different meanings:
- "Hurts" (causes pain)
- "Hertz" (unit of frequency, named after physicist Heinrich Hertz)
The setup: "What happens if someone slaps you at a high frequency?"
The punchline: "It hertz" — which sounds like "It hurts" when spoken aloud.