flash out(redirected from flashes out)
To shine or glow from some thing or place. Hey, I can see the light of your phone flashing out from under the covers—go to bed!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
[for a light] to shine out of something suddenly or in bursts. The light flashed out, signaling us to stay away from the rocks. Under the door, we saw a light flashing out. Someone was watching television in that room.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.