1 definition by Jasmine Kela
A sack of weed that is both skimpy and poor quality...and smashed. Derranged from the term "skimpsack".
An example of a dumpsack would be weed you buy from some cracked out wierdo who calls the weed "dense", but is just smashed from them sitting on it.
by Jasmine Kela June 23, 2008