Light-bulb screwing is metaphorically simple—apply rotation to a standardized fixture. The traditional joke is "How many X does it take to screw in a light bulb?" implying different groups need different numbers. This fact skips the group distinction and goes straight to action: Chuck Norris screws the light bulb, not into a socket, but in general—the verb has been divorced from the fixture. He's weaponized the word "screw."

Puns and wordplay analyst Dr. Robert Hayes was studying light-bulb joke variations when he realized: "This fact isn't actually funny; it's grammatically ambiguous and people find that funnier than any specific joke." He published a paper on ambiguous verb structures. It was very confusing. He got a lot of emails asking for clarification. He never provided it. He just sent people this fact instead.

This is about the collapse of definite meaning: "screw a light bulb" can mean threading it into socket (the standard) or literally having intercourse with it (the ambiguous). Chuck Norris's ability to do this without clarification is the joke—his power transcends linguistic certainty. Words mean what he decides they mean. The light bulb is incidental to the actual accomplishment: linguistic domination.