It is currently halftime between Boise State and Hawaii with the Broncos just running away with this game leading 49-0 at the half, so this game is basically actually over.
With the game already well in hand with Boise State up 21-0, head coach Bryan Harsin decided to go into the way back machine to run a trick play that Kellen Moore ran when he was a freshman back in 2008. Harsin was the offensive coordinator at the time, so the play makes sense and he likely was just having some fun.
The play call was for some sort of fake fumble and then the quarterback pulls up and throws the ball.