It can also be a verb. "Fobing" means to listen to music by Fall Out Boy.
"Jimmy, Jimmy dear? What are you doing in the bathroom that's taking so long?"
"DON'T COME IN YET!"
"Jimmy? JIMMY YOU BETTER NOT BE FOBING IN THERE!"
"GO AWAY MOM! YOU DON'T KNOW WHAT IT'S LIKE!"
"Maybe I should get your father in here to explain the ways of the Fob..."