(slang) Someone who kisses primarily in the neck; a neck kisser.
1931, P. G. Wodehouse, 'Big Money', Herbert Jenkins: London, page 195.
"A nice girl like you! A girl who has always prided herself on her fastidiousness. A girl who could never understand how other girls in her set could make themselves cheap and let themselves be pawed about—Ugh!" said Conscience witheringly. "Necker!"
Ann shuddered.
"Yes, Necker!...
noun
(especially in compounds) Someone or something with a certain type of neck.
noun
A scarf that is worn looped or tied around the neck.