megliss'd Share definition Flag A slang term for something that is broken, or doesn't work. Daves' roomate is megliss'd, he hasn't had a job in months. My car is megliss'd, it's going to the shop tomorrow. megliss'd by Phillip the great April 10, 2008 0 0 Get merch Get the megliss'd mug. Buy Now — $32.95 See more merch