Definition of neck-hole in US English:

neck-hole

noun

  • 1The hollow in the back of the neck; the space between the back of the neck and the collar. Now rare (chiefly regional in later use).

  • 2An opening for the neck in an article of clothing.

Origin

Late Middle English; earliest use found in Nominale. From neck + hole.

Pronunciation

neck-hole

/ˈnɛkhəʊl/