neckful

noun2

1. •
   As much as fills a neck.

   • Snatching the bottle, Jim Chen got a grip on Peter's head and poured a neckful of whisky down him. — 1959
2. •
   As much as fits around a neck.

   • They looked about forty, with frazzled, husklike hair, and neckfuls of primitive jewelry that bespoke extensive experience traveling in tropical climes. — 2003