Oops sorry -- Glurg is an real word. It actually has an umlaut over the 'u'. It is a holiday beverage served in the cold northern wastes of Scandinavia comprised of alcohol and fruits that have fermented in a crockery jug for weeks and weeks. Mildly sweet it is a hedge against the doldrums and bacterialinfections passed on via kissing beneath the misseltoe or bundling blankets!
Someone who is after doing or saying something stupid, annoying or weird, or someone who is actually effectively stupid, annoying or weird themselves, to those people the moniker can be permanently given. The word is usually elongated.