shadowbox
(redirected from shadow-boxes)Also found in: Dictionary.
shadowbox
To punch at the air as if one has an imaginary opponent. While we finished up our conversation in the parking lot, that goofball Jimmy shadowboxed around us. I always shadowbox for 15 minutes or so before getting in the ring against a real opponent.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.