blinky

Etymology

From blink + -y.

adj

1. Of eyes or people/animals: blinking repeatedly, prone to blink.
   The door of the cabin creaked. Smith's blinky eye peeped out to see if he had dreamed us. 1941, Emily Carr, chapter 18, in Klee Wyck
   He was a literature professor, neurotic and blinky behind his glasses […] 2013, Chimamanda Ngozi Adichie, chapter 36, in Americanah, New York: Knopf
2. (of lights, shining objects) flickery, prone to flicker
   She struck a match and relighted the candle and everyone looked at each other by its winky, blinky light. 1906, E. Nesbit, chapter 2, in The Railway Children
   […] the rosary beads that hung from her belt like a zoot-suiter's key chain were blinky bright […] 1997, Don DeLillo, Underworld, New York: Scribner, Part 6, Chapter 4
3. (US, regional) Of milk: turned somewhat sour.
   No proper place for cooling milk in summer meant not only blinky milk unfit to drink, but no sweet cream for the cream jug that most of them had, and neither good butter nor buttermilk could come from milk not properly cooled. 1960, Harriette Simpson Arnow, Seedtime on the Cumberland
   She took a swallow of milk and made a face. "This milk is blinky." Mrs. Willet frowned. 'It shouldn't be. I just got it yesterday." She opened the top of the icebox and looked into the ice compartment. She groaned. "The block of ice I got yesterday is almost melted." 1978, Tom Reamy, Blind Voices
   I mean really, who needs a date stamped on the jug to tell you when milk has gone bad? It’s got a built-in warning system. First, you get that little whang in the taste. It’s gone blinky. Time to think about getting more. 12 October 2013, Steve Blow, “Beward of toxic milk — and other expiration-date silliness”, in The Dallas Morning News

noun

1. (photography) in digital photography, a flashing pixel.
   Blinkies visually indicate the areas of a photograph where the exposure is beyond the range of the film.