'Pesky' definitions:

Definition of 'pesky'

From: WordNet
adjective
Causing irritation or annoyance; "tapping an annoying rhythm on his glass with his fork"; "aircraft noise is particularly bothersome near the airport"; "found it galling to have to ask permission"; "an irritating delay"; "nettlesome paperwork"; "a pesky mosquito"; "swarms of pestering gnats"; "a plaguey newfangled safety catch"; "a teasing and persistent thought annoyed him"; "a vexatious child"; "it is vexing to have to admit you are wrong" [syn: annoying, bothersome, galling, irritating, nettlesome, pesky, pestering, pestiferous, plaguy, plaguey, teasing, vexatious, vexing]

Definition of 'Pesky'

From: GCIDE
  • Pesky \Pes"ky\, a. [Etymol. uncertain.] Pestering; vexatious; troublesome. Used also as an intensive. [Colloq. & Low, U.S.] --Judd. [1913 Webster]