rum pig 

the worst kind of alcoholic who's preffered drink is rum. These are the most hardened of all alcoholics.

adam browne

rum pig by Robert Large August 19, 2003

rumpig 

To be a harcore Rum drinker, straight over-proof rum drunk in brown paper bag.
To become very rowdy and aggresive from Rum in large quantities.

"Is that dude serious drinking straight Bundy O.P?"('Bundaberg'-Australian overproof Rum ie. 60% alcohol).
"Don't worry about him, he's a chronic rumpig!"

rumpig by Diego June 23, 2003