To get wasted drunk beyond belief, to the point wher one is sitting naked on a public bus with ones pants around ones ankles and ones own belt around ones own neck.
'Dude you were pretty wasted when you left that party, but you were still with a chick How did it go in the end?'

'I can't remember. I was beltnecked'
by Mack P Silk September 27, 2005
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