If your Great Aunt Maude tells you you've become a dissipated bum, she means you don't think of anything but gambling and whiskey. But then again, her perspective on your weekend trip to Vegas might be a little off.
The adjective dissipated is used to describe people who've lost their moral center, and instead of following the rules of conventional morals, prefer to drink and gamble. The word comes from the verb dissipate, which means to disperse, but as an adjective it's always used for people who've gone wrong in some way. If you really want to lay into someone, use these synonyms and call him a "dissipated, dissolute, debauched, degenerate jerk."
