originated in Australian prisons. It is a slang word for stealing clothes from other people's clothes lines. Prisoners sometimes did this when needing a quick change of appearance.
The convict entered my neighbour's backyard and snowdropped her clothesline.
To convict "Where did you get those clothes from?"
Convict "I went snowdropping."
To convict "Where did you get those clothes from?"
Convict "I went snowdropping."
by Dan DENNIS April 04, 2006