Well, actually it says, DICK und stolz drauf! Fat and proud of it! Yeah, DICK translates to FAT or, if you don't want to be too crude, BIG or LARGE. That's a one-liter DICK can of Astra Urtyp beer.
Astra Urtyp, brewed by Carlsberg, is a beer produced in the northern German city of Hamburg.
Who knew the Germans have such a great sense of humor?