What is a PEER?
A peer is another computer (user) on the internet that you connect to and transfer data.
Sometimes also known as a LEECH or LEECHER or LEECHING.
Generally a peer does not have the complete file, otherwise it would be called a SEED. Click HERE for SEED information.
Some people also refer to peers as leeches, to distinguish them from those generous folks who have completed their download and continue to leave the client running and act as a seed.
So if you always download files, and ALWAYS close your client down shortly after your download has finished, then you would be known as a LEECH.
Remember, never close your client down even when your download is complete!