"sodding" and "sod", as in "You stupid sodding bastard!" or "You bloody sod!". What the heck is that about? I always thought that sod was a layer of grass and earth for putting on a new lawn.

It seems to be a popular British term of abuse. Does anyone have an explanation? Or a derivation?

Then there's "tosser" which is downright hilarious to North American ears. I have been called a tosser by certain sodding old gits on this forum, and I thoroughly enjoyed it. ;-)