Turns made after checking for cop cars, often

• Reversals on the road
• 180° turns, slangily
• They may be done by ones who have gone too far
• One-eighties, in slang
• Illegal highway maneuvers
• Road reversals, informally
• Dangerous things to do at busy intersections
• Turnarounds, in slang

Wiktionary Word definitions in Wiktionary
n. (plural of uey English)