🌈 Rev up your brain Rev up 1️⃣a notion for moving activity. Gather energy to do something big and exciting. ) Ex: The company is revving up for its launch. Ex: I reved my brain with a cup of coffee. 2️⃣to make someone or something more active or effective. Ex: The coffee reved up my brain. Ex: We are hoping these new policies will rev up the economy. Ex: They are trying to get customers reved up for the launch of the new products. 📕similar phrases: fire up/get fired up(to make sth active or intense. more used in sports. ) Ex: The coach is trying to fire up her players. Ex: After meeting with her therapist, she was fired up about making some changes. 👏👏👏"get really upset" is its second meaning which is totally different from the first one.(being really angry) Ex: He really got fired up when she lied to him.