wigwag /wigˈwag/

1. To twist about
2. To signal by means of flags

1. The act of wigwagging
2. A level crossing signal that gives its indication, with or without a red light, by swinging about a fixed axis

Twisting

To and fro

• open secret
• open secrets
• open sentence
• open sesame
• open sesames
• open shop
• open shops
• open side
• open sides
• open sights
• open skies
• open slather
• open-source
• open-steek
• open-stitch
• open system
• open systems
• open the ball
• open the door to
• open the floodgates
• open-top
• open-topped
• open town
• open towns
• open university