Nudnik

n. pest, nuisance (Yiddish)

The English suffix -nik is of Slavic origin. It approximately corresponds to the suffix "-er" and nearly always denotes an agent noun (that is, it describes a person related to the thing, state, habit, or action described by the word to which the suffix is attached). In the cases where a native English language coinage is possible, the "-nik"-word often bears an ironic connotation.
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Noun
1. (Yiddish) someone who is a boring pest
(synonym) nudnick
(hypernym) bore, dullard
(classification) Yiddish

n. nudnik, pest, nuisance (Yiddish)

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