leave one’s blinker on
v. phr.— «Last column’s treatise on baseball pants pockets prompted some good responses, many of them chiding Uni Watch for not mentioning that having an inside-out pocket is often referred to as “leaving your blinker on.” And David Conley adds that having both pockets turned out is often called “having your hazards on.”» —“Page 2: What’s under your bill?” by Paul Luka ESPN.com July 6, 2006. (source: Double-Tongued Dictionary)
Further reading
In 1916, a small-town newspaper in Pennsylvania printed a fanciful item about a local gathering with a guest list that included, among others, Miss Ella Vader, Mr. Ray Zor, and other punny names. This is part of a complete episode. Transcript of...
Nikki in Charlotte, North Carolina, shares the story of a man who casually told passersby You dropped your pocket, prompting them to check for something that wasn’t there in the first place. That silly saying reminds her of playing pool and trying...