2. Can also be used as a verb to describe the act of drinking caffeinated beverages.
3. Also as an adjective (as 'feined) to mean excited, hyper, stoked, happy, or totally hopped up on 'feine.
1B. DUDE, I LOVE 'FEiNE! WHOOOOO!
2A. I totally need to 'feine before we get this game going.
2B. 'Feine me up, Scotty! Toss me a Bawls!
3A. I'm so 'feined that you're coming to town on saturday.
3B. Man, I'm too 'feined up to sleep, grab a controller, IT'S ON!