'Testy' definitions:

Definition of 'testy'

From: WordNet
adjective
Easily irritated or annoyed; "an incorrigibly fractious young man"; "not the least nettlesome of his countrymen" [syn: cranky, fractious, irritable, nettlesome, peevish, peckish, pettish, petulant, scratchy, testy, tetchy, techy]

Definition of 'Testy'

From: GCIDE
  • Testy \Tes"ty\, a. [Compar. Testier; superl. Testiest.] [OF. testu obstinate, headstrong, F. t[^e]tu, fr. OF. teste the head, F. t[^e]te. See Test a cupel.] Fretful; peevish; petulant; easily irritated. [1913 Webster]
  • Must I observe you? must I stand and crouch Under your testy humor? --Shak. [1913 Webster]
  • I was displeased with myself; I was testy. --Latimer. [1913 Webster]