A hybridization of "towed" and "owned." Used in reference to a situation where your car gets towed away and you get slapped with a huge fine at the most inopportune time.
The act of getting so drunk and lookinglike such a mess that people may mistake you for living in a shanty town.
Sam: Ite mate, what went down last night?
Will: I dunno man, I drank so much I can't remember, must've got absolutely shanty towned.
Sam: Mate that's a par!