fling up (one's) hands in (some emotion)(redirected from fling up their hands in)
fling up (one's) hands in (some emotion)
To toss or jerk one's hands upward to convey some emotion. As the kids ran around the room shrieking, Mom just flung up her hands in exhaustion and shook her head. I can't hear what they're saying, but it looks like Dad just flung up his hands up in anger, so that's not a good sign.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.