I thought it stood for leopard? 
Though cheetahs are pretty damn awesome as well. 
Oops! Someone must have mislabeled that video! Darn! Actually is stands for leopards, the plural! lampart is the singular leopard! I should have taken a better look at that video before posting the link! Maybe that is what the last part meant (zwierzeta), I don't know as I don't speak or read Polish!
The only reason I knew so was Pardus having mentioned it ages ago. 
lamparty
As far as I know this is where the name came from!!