A person who upon entering a building depletes the entire area of all the bandwidth therefore slowing down everyone's internet.
Greg walked into the dorm and my internet just stopped working because he is a bandwidth bandit.
by Joe Shafty April 30, 2008
During filesharing, people who suddenly jump in to download from you whilst you just want that one last file!
"Great! I'm at 68KB - What! Those damn bandwidth bandits have cut my throughput down to 8K!"
by scott October 29, 2003