complete and total stupidity (see Jim Henry and Dusty Baker)
Jim Hendry is a total rumdum.
by bhogg September 09, 2006
Rum-dum is when you or another person has drank so much alcohol that they are about the point of madness for example talking to themselves, going mad, threatening you, acting weird, running around. This is so much alcohol that they will eventually get weird side effects like puking.
Danny saw a rum-dum guy in his neighborhood, running around with a bottle of beer.
by Ultraf0xDictionary June 06, 2014
The act of being stupid from the being drunk off of rum only.
What are you a rumdum?
by Me May 31, 2004