i noticed i was double-booking yesterday as i was updating my status on the computer and liking your photo on my phone
"the moment when you are browsing facebook on your computer, and then reach for your phone and instinctually check facebook, thus resulting in an awkward, "double-booking
"i noticed i was double-booking yesterday as i was updating my status on the computer and liking your photo on my phone" What is the definition of "double-booking"?