Dallas Devestious Thompson asks about his name. His mother named him Dallas because she liked the name for a long time. Dallas is a Gaelic name meaning "valley" or "meadow" that comes from Ireland. While there are no stories about his name, the TV show Dallas is set in a city in Texas with the same name. His nickname from his family is Dally, and his grandfather calls him Buster, which was also the nickname of his great-uncle who shared his name. Dallas likes that his name is different from others. If he could change his name, he would choose Nick because it sounds like a smart name.