The phrase "bring the block" can be a bit confusing, since it's not a widely known idiom. However, there are several synonyms that might make the meaning clearer. For example, you could use "stop the flow," "halt progress," "put a damper on," or "arrest development" to convey a similar message. Alternatively, you could use words like "obstruct," "impede," or "interfere with" to describe actions that prevent something from moving forward. No matter which synonym you choose to use, be sure to consider the context of the situation and the tone of your message to ensure that the phrase conveys the intended meaning.