I Googled "jogging derogatory" and found some funny stuff. Two samples here; there's a lot more, mostly predictable discussion board nonsense. The gist seems to be that running is faster, hence the hurt feelings, I suppose. Also, jogging might be a dated term.
http://www.coolrunning.com/forums/Fo...L/024355.shtml
http://en.wikipedia.org/wiki/Jogging

