make someone open his eyes—
1. make smb. stare in surprise; amaze a person greatly:
- It really makes me open my eyes in amazement when people think it is impossible to live like this.
2. cause a person to realize smth.; make smb. see reason:
- It was the humiliation in Adelaide that made them open their eyes and realize the mess that they were in.
make someone open his eyes wide — = make someone open his eyes 1:
- From behind, at the back of the chapel, came a voice, one that made him open his eyes wide in surprise.