This word is used when a flakey dude cant own up to make a real commitment and knows he's probably gonna flake. So he adds an "InshAllah" to the end of forsure.
Dude 1: Dude im totally coming tomorrow don't worry I wont flake.
Dude 2: Dude thats what you said last time
Dude 1: Nah dude this time FSI
*Tomorrow comes
Dude 2: Dude you totally flaked
Dude 1: Sorry dude, I was busy
This technology is said to increase power output and improve fuel economy at the same time. FSI is the same, minus the TURBOCHARGER. Is it any good? You betcha!