Dirt Neck Share definition Flag A filthy person who has done you wrong or who needs to wash their neck. You really need to wash up boy! you don't wanna' end up a 'dirt neck' like your uncle.... do you? Dirt Neck by M.Dizzle420 May 24, 2010 0 0 Get merch Get the Dirt Neck mug. Buy Now — $32.95 See more merch