hoot
in. to boo at someone's performance.The audience hooted until the performer fled the stage in disgrace.They hooted for a few minutes after she left the stage.
thumbs down
1.
n. a sign of disapproval.
The board gave our proposal a thumbs down.Not another thumbs down!
2.
mod. disapproving; negative.
It was thumbs down, and I was disappointed.The thumbs down decision was a victory for good sense.