look up any word, like sex:
This occurs when you have a friend over for a visit, but a neighbor intercepts them first, hijacking them by involving them in a long conversation, thereby delaying/postponing your visit.
Dinner grows cold as I wait for my friend, Mitch, since my neighbor, Ryan, is always hanging out in the driveway, guestjacking my friends without warning.
by Kitten Mittons April 11, 2010