erm .. bandwidth I guess. For example you download a 100 MB file. You upload it to x amount of people so much that you end up uploading 200 MB of such a file. So your ratio would be 2 on that particular file. As for your overall sharing ratio would depend on how you went with those. My overall ratio is 2.33 at present. If you'd downloaded more than you had uploaded then your share ratio would be less then one; eg: 0.75 (would be 0.5 if you'd uploaded half as much as you'd downloaded.)

I am aware that some people (in their particular torrent program settings) filter out users who have a ratio below 1.0 .. some even a little higher. eg: 1.25 (which would mean overall uploading 25% more than you'd downloaded.) The concept & thinking behind it is they wish to share only with 'true' sharers. Not with leeches who come & take what they want then disappear from the sharing process or from the network. LW seems to miss this point. Not sure how they deal with it. But their default settings are to share 6:4 which means a ratio of 0.66 'if' others are able to connect to them. And of course that's not always the case, especially with LW re: torrents.