different between necker vs fecker

English

Etymology 1

neck +? -er, from the verb.

Noun

necker (plural neckers)

1. Someone who kisses; a 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!...

   • 2008, Don Malarkey, Bob Welch, Easy Company Soldier: The Legendary Battles of a Sergeant from World War II

     We all ate at the Liberty Grill, and then Bernice and I drove her family's Pontiac upriver, to a hill overlooking Tongue Point, where plenty of neckers were fogging up the windows.

Etymology 2

neck +? -er, from the noun.

Noun

necker (plural neckers)

1. (especially in compounds) Someone or something with a certain type of neck.

English

Etymology

feck +? -er

Noun

fecker (plural feckers)

1. (Ireland) fucker (term of abuse)