0 the act of fighting an imaginary enemy by hitting the air with your hands:
1 the exercise of boxing without a partner by hitting at the air with your hands as if another person were boxing with you
The argument is mostly shadowboxing, since an actual agreement is years away.
He climbed on to a desk at the training ground on Friday and used shadowboxing to explain his tactics.
He trained basketballer players in footwork, employing tactics as diverse as shadowboxing and ballet.