I've worked here all of my 'adult life'. [=I've worked here since I became an adult]
People who are close friends as children aren't always friends as 'adults'.
The university offers a popular program of 'adult education'.
(..) elegant than the average kid's. That's when I realized it. Whoever Skankhunt is on the school message boards, it isn't a student. It's an adult. You mean like one of the teachers? I think... it's one of the parents. Are you sure? I had enough examples of the teachers' (..)2016 TvShow: South Park Title: Fort Collins Season: 20 Episode 6