Mr. Mackey, Jr. is the guidance counselor at South Park Elementary, best known for saying "m'kay" at the end of most of his sentences. He also serves on the City Council as head of Public Health.
There are roughly one-sh*t billion tropes so PLEASE look through them before adding one. Otherwise add what you like. ADDITION: PLEASE read through the trope description provided before submitting something. It's not a huge deal but too often people submit characters that don't fit just because they misinterpreted the title...