fire up

verb5

1. •
   To ignite.

   • Let's fire up the grill and have a barbecue.
2. •
   Of an engine or similar, to start.

   • The generator fired up shortly after the power failure began.
3. •
   (informal) To launch; to run.

   • Fire up a text editor.
   • Fire up your computer.
4. •
   To excite; to infuse with energy.

   • The band went out to fire up the crowd before the game.
5. •
   (old-fashioned) To grow irritated or angry.

   • He […] fired up, and stood vigorously on his defence. — 1911