a very short time (as the time it takes the eye to blink or the heart to beat);
"if I had the chance I'd do it in a flash"
shining intermittently with a sparkling light;
- He disappeared in a twinkling of an eye.
- Above were the twinkling stars in the night sky.
- He stared up at the stars twinkling in the sky above him.
- She smiled at me with her unforgettable twinkling blue eyes.