wave off
verb1
To give a wave of one's hand, or of a flag or wand, so as to signal (someone) to desist or leave.
- Near-synonym: wave away
- He waved off the approaching truck driver and restarted the apparatus.
2
Aeronautics, Aerospace, Aviation, Business, Engineering, Government, Military, Natural sciences, Nautical, Physical sciences, Politics, Transport, War Of an aircraft carrier landing signal officer, to signal a pilot to go around.
3
To say goodbye to someone with a wave (hand gesture).
4
Ball games, Basketball, Games, Hobbies, Lifestyle, Sports Of a referee, to disallow a field goal with the aforementioned hand gesture.