She's screaming like crazy. . . . You have this myth you're sharing the birth experience. Unless you're circumcising yourself with a chainsaw, I don't think so. Unless you're opening an umbrella up your ass, I don't think so!

In this bit, Williams punctures the sentimental idea that a male partner “shares” childbirth in any literal sense. By juxtaposing the woman’s extreme physical ordeal with grotesquely exaggerated, impossible male equivalents, he uses shock humor to insist on the asymmetry of pain, risk, and bodily sacrifice involved in labor. The comedy depends on taboo imagery and escalating hyperbole, but the underlying point is recognizably social: supportive presence is not the same as embodied experience. The line also reflects Williams’s broader stand-up style—rapid-fire improvisation, visceral metaphor, and a willingness to weaponize the obscene to expose self-serving cultural myths.