The spelling of the word "jizzy" can be linked to its phonetic pronunciation, which is /ˈdʒɪzi/. This word is believed to have originated from the word "jizz," which means semen, and is often used in vulgar slang. The addition of the "y" at the end of "jizz" creates a cutesy or playful tone, making it less vulgar. However, it is important to note that the use of this word may be offensive to some people, and should be used with caution.