blow open(redirected from blow/break open)
To suddenly and decisively take control of a competition. A noun or pronoun can be used between "blow" and "open." The game was close through the first two periods, but then the other team blew it open by scoring two quick goals. We can blow open this game if we score first.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.