What is Blink ?
Blink is (noun) 1. the action of quickly shutting and opening your eyes He heard the news without a blink. 2. on the blink not working, out of action (informal.) The telephone’s on the blink. (verb) 1. to close your eyes very quickly He blinked when the light was switched on. She watched the bull come towards her without blinking. 2. (of lights) to go on and off The alarm light is blinking.
source: Easier English, Student Dictionary Upper Intermediate Level