Green’s Dictionary of Slang

neckie n.

[SE neck + sfx -ie]

lit. or fig., a necklace.

Harrisburg Dly Indep. (PA) 22 Dec. 3/4: He had stolen a horse and the people made him a neckie of hemp, and placed it about his neck.
[Scot](con. 1980s) I. Welsh Skagboys 205: Aw these rings, neckies n bracelets in ma poakit.