1. When a person complains in a status post about how someone/something is stupid, but they misspell their text; most ironically, the words "stupid," "intelligent," and "educated" are most often misspelled in stupdi posts.
2. A person who makes a stupdi post is considered stupdi themselves.
User 1: "haaaatez how no1 cann speel n dey all wana say im so dumb but u btichez cant evn spel so idc whut you sayin~."
User 2: "You tell those stupdi btiches. You tell them good."