A hangover that is so bad, that you would literally want to "fling" yourself off a bridge/building, therefore creating a FLUNGOVER
Man, I was really flungover this morning. I crossed the bridge over the river and wanted to be in the river.
by Big Chocolate Button October 06, 2010
I thought at first I was just hungover, but I didn't get better and realized I had gotten the flu. I was flungover!
by Firstlyfe January 21, 2010
After a hard night of partying, I was flungover the next morning- not the best idea when on Southwest's cramped flights.
by Will Hung April 01, 2008