Dictionary.com
definitions

nudnik

[noo d-nik]
See more synonyms for nudnik on Thesaurus.com
noun Slang.
  1. a persistently dull, boring pest.

Origin of nudnik

1945–50, Americanism; < Yiddish, equivalent to nud- base of nudyen (see nudge2) + -nik -nik
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for nudnik

headache, nuisance, pest, schmo, nudnik
British Dictionary definitions for nudnik

nudnik

noun
  1. US informal an annoying or boring person

Word Origin for nudnik

C20: from Yiddish nudyen to bore + -nik
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for nudnik
n.

1947, from Yiddish, with agential suffix -nik + Polish nuda "boredom" or Russian nudnyi "tedious, boring," from Old Church Slavonic *nauda-, from PIE *neuti- "need" from root *nau- "death, to be exhausted" (see need (n.)).

Online Etymology Dictionary, © 2010 Douglas Harper