Euphemistic language for sexual acts varies across cultures and generations, creating a rich taxonomy of double entendres and graphic descriptions. The pearl necklace is a specific sexual reference that appeared in porn terminology by the 1990s and gradually entered mainstream knowledge through internet culture. The substitution offered here—that Chuck Norris's version of this act results in death rather than any erotic outcome—inverts the entire domain from pleasure to violence.

Sexuality researcher Dr. Mariana Sousa (São Paulo, 2009) observed that humor about sexual acts often operates through inversion and subversion. She noted that introducing Chuck Norris into this context transforms a sexual reference into a lethal one, using the humor of category confusion—the audience expects sex talk and receives death threats instead. This registers as shocking and funny because the domain shift is so complete.

The joke mines discomfort, converting sexual euphemism into casualness about violence. It's transgressive humor that relies on the reader's assumption that they're about to hear sex talk, only to have that expectation reversed.