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Stealing clothes (often designer labels) from clothes lines.
Nice jeans mate! Yeah, I went snow dropping last night.
by LimosineD September 05, 2007
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."
by Dan DENNIS April 04, 2006