A period of time in which one should be doing homework; however, he or she is distracted by lurking people on Facebook.

A casual invitation / threat used by an individual that is not afraid of fucking someone up.

While attempting to do homework on the computer, you get disctracted by facebook and end up lurking the randomest people for hours on end. Meanwhile, your word document sits untouched until you clue in and realize you're on a friend-of-a-friend's boyfriend's mom's profile.. you just homelurked.