nudnik

noun Slang.

1. a persistently dull, boring pest.

noun

1. US informal an annoying or boring person

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.)).