A particularly chubby person with fat rolls around the back of the neck resembling an arse or ass.
The species mainly comes from Northen England (accompanied with a strong Northen accent), thriving on potato cobblers and Coors Fine Light Beer.
Some, but not all of them have very poor vision and as a result they squint almost all of the time. They can also be seen wearing beanie hats and perfectly fit the description of 'Brit abroad' whilst on holiday.
John, check out that chubby fucker!
- Said creature turns around, showing his neck
Fuck me, he's a proper arseneck!