The "oh knotty" phenomenon occurs due to the unique anatomy of the canine reproductive system. The male dog's penis has a bulbous gland located at the base, called the bulbus glandis. During mating, this gland becomes engorged and expands, causing the penis to swell. Simultaneously, the female dog's vagina contracts and spasms, creating a strong, muscular grip around the male's penis. This combination of factors leads to the characteristic tie or "oh knotty" connection.

If the player spent too much time petting Oh instead of talking to their date, Oh would become "knotty" in a different way—hiding the date’s shoes, refusing to go home, or even playfully growling at the love interest. This added a layer of polyamorous humor: a love triangle with a dog as a third (non-romantic) corner.

: While the hierarchies seem rigid, many modern "knotty" romances use the setting to explore queer relationships, polyamory (often called "why choose" romance), and neurodivergent experiences.

For those looking for financial perks, meeting Avery every Saturday around 8 PM and going on at least three dates will unlock them as a love interest; they are known for providing money during dates.