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brew up (something)
1. To make a beverage (often coffee or tea) by brewing. You better brew up a pot of coffee, it's going to be a long night.
2. To prepare or incite something. What are you kids whispering about back there? You better not be brewing up trouble!
brew something up
1. Lit. to brew something, as in making coffee or tea. Can somebody brew some coffee up? Let me brew up a pot of tea, and then we'll talk.
2. Fig. to cause something to happen; to foment something. I could see that they were brewing some kind of trouble up. Don't brew up any trouble!
Fig. to build up; [for something] to begin to build and grow. (Typically said of a storm.) A bad storm is brewing up in the west. Something serious is brewing up in the western sky.