Pau Hana And Rum Ads

I've noticed Bacardi delivery trucks around Maui a lot lately. They're very graphic and well done. What does Pau Hana mean? Here's the translation from the online Pidgin Dictionary:

"pau hana (pow HAH-nah). Another actual Hawaiian phrase. Means after work. Also after work drink. Junior wen bus up his truck. Get too many pau hana."