wig-wag
n.— «On occasion, Bottini hit the red wig-wag lights behind the grille and pulled a motorist over.» —“Special Squad Fights Auto Thefts” by Andre Jackson St. Louis Post-Dispatch (St. Louis, Mo.) Jan. 7, 1988. (source: Double-Tongued Dictionary)
Further reading
You might be surprised to learn that a “hoosier” isn’t necessarily from Indiana. Around the St. Louis, Missouri, area, the term hoosier has a whole other meaning. And: Scotland is the home of the Golden Spurtle world championship, but what exactly...
Mary-Clare recalls that when she was growing up in St. Louis, Missouri, everyone she knew used the term hoosier as a kind of teasing pejorative. If someone did something silly, others would say You’re such a hoosier, the adjective hoozh, or jokingly...