move fast: to move quickly or suddenly in a particular direction (= leap)
- Matt jumped up to answer the phone.
- We all jumped in a taxi.
- She jumped to her feet and left
- Cathy kept jumping from one topic to another.
- I've been jumping about the file instead of working straight through it.
- I'm afraid I jumped a couple of chapters.
- The movie suddenly jumped ahead to the future.
- There may be a simple explanation. Let's not jump to conclusions.