The phrase represents a non-standard orthography of “is,” the third-person singular present tense form of the verb “to be.” It’s commonly encountered in informal online communication, social media, and certain dialects. An example would be the sentence, “The sky blue.” This phrasing deliberately deviates from standard English grammar.
This deliberate alteration of standard spelling serves several purposes. It can convey informality, signify group membership within specific online communities, or contribute to a particular humorous or ironic tone. Historically, such variations often arise from spoken dialects and are then adopted into written communication, particularly with the rise of internet culture. The adoption of these non-standard forms provides insights into the evolving nature of language and how it adapts to different communicative contexts.