Sex-advice columnist Dan Savage dismissed the act as completely fictional. Brian Bouldrey in Dirty Words: A Literary Encyclopedia of Sex says the act is an urban legend. The New Partridge Dictionary of Slang and Unconventional English says, "This appears to have been contrived with the intention to provoke shock rather than actually as a practice, although, no doubt, some have or will experiment." Columnist Gustavo Arellano of ¡Ask a Mexican! contends the term evokes the stereotypical mustache of a Mexican. The term for the sex act entered British gay cant Polari in the 1960s.A Chicago sunroof is a fictional act, popularized in American crime drama series Better Call Saul, a spinoff of Breaking Bad. In the series, the titular character Jimmy McGill (Bob Odenkirk) defecates through an open sunroof as part of a revenge plan. As he (falsely) points out, “Its a real thing. I didnt make it up. Im not the first person to do it. Theres a name for it.” Series creator Peter Gould clarified in an interview that the "Chicago sunroof" is not real. See also
2 Girls 1 Cup
Anilingus
Ass to mouth—removing the penis from the passive partners anus followed by its immediate insertion into the mouth
Coprophagia—the consumption of feces
Flatulence fetishism
Sadomasochism
Scatology
Urolagnia (also known as urophilia)—a paraphilia involving sexual pleasure from urine

References
Further reading
Fritscher, Jack (1978). "Review of END PRODUCT: THE FIRST TABOO by Dan Sabbath and Mandel Hall, Preface by Abby Rockefeller. URIZEN BOOKS, N.Y., 1977. 287 pp" (PDF). Drummer. No. 22. Retrieved December 28, 2018. Xavier CM (June 1955). "Coprophilia; a clinical study".
Mutations in the ASS gene reduce the activity of the enzyme, which disrupts the urea cycle and prevents the body from processing nitrogen effectively. Excess nitrogen, in the form of ammonia, and other byproducts of the urea cycle, accumulate in the bloodstream, leading to the characteristic features of type I citrullinemia. Type II
The symptoms of type II citrullinemia (Online Mendelian Inheritance in Man (OMIM): 605814 and Online Mendelian Inheritance in Man (OMIM): 603471) usually appear during adulthood and mainly affect the central nervous system. Characteristic features include confusion, abnormal behaviors (such as aggression, irritability, and hyperactivity), seizures, and coma. Specific investigation like decrease citrulline level , increase ammonium ion . These symptoms can be life-threatening, and are known to be triggered by certain medications, infections, and alcohol intake in people with this type.Type II citrullinemia may also develop in people who had a liver disorder called neonatal cholestasis during infancy. This condition blocks the flow of bile and prevents the body from processing certain nutrients properly. In many cases, the  symptoms resolve within a year. Years or even decades later, however, some of these people develop the characteristic features of adult type II citrullinemia.Type II citrullinemia is primarily found in the Japanese population, where it occurs in an estimated one in 100,000 to 230,000 individuals. Type II has also been reported in people from East Asian and Middle Eastern populations. Mutations in the SLC25A13 gene are responsible for type II citrullinemia.