Speak Like a Trucker: Can You Pass the Slang Quiz?
What does a "flag waver" refer to for truckers?

Correct Incorrect Navigating a construction zone is tough in a car, but it's even harder in a semi. Spotting a flag-waver ahead signals delays are coming, and you might see cars trying to squeeze into the gap you've kept in front of your truck. Take a deep breath, keep your focus, and push through to the open road!