1. The state of tiredness when you begin to fall asleep doing an activity, ie. surfing the net, studying, etc.
2. Similar to the Hawaiian 'da kine', brile can mean anything the speaker wishes it to.
3. Also used to express extreme tiredness
The origination: Geeez. I just looked at the vlock and shook his head, rease's he'se used to next, only brile up a little.
"Man, I'm so brile, I need to go take a nap."
"I was up so late IMing, I was falling asleep while typing!" "Wow you were pretty brile!"