The act of stealing apples from a cider orchard. (The word comes from Scrumpy cider) This term cannot be applied to a town or city enviroment. For example you couldn't steal a stereo and call it 'urban scrumping'
Giles was caught scrumping from Mr. Johnsons farm on Tuesday
the act which blends 'scratching' and 'humping' which is a sexuallly based activity. it can involve 2 or more people and is normally seen as a pleasurable activity. however it must be done in the right manner, scratching too hard can result in unpleasant injuries to the scrotum or other areas, but too soft can make it an awkward encounter of rubbing and meriment.