Rush B:

Rush B is a team tactic in Counter-Strike 2 that means pushing quickly and directly toward the B bombsite, usually with little delay or hesitation. It is often used to overwhelm defenders before they can rotate, set up utility, or fully prepare for the attack.

The phrase is also a common callout and shorthand for an aggressive, fast-paced execute on B, whether or not the team follows through with the same exact route every round.

Related: Rush, Execute, Rotate (Rotation)