v. & n.
v.intr. 1 linger furtively or unobtrusively. 2 a lie in ambush. b (usu. foll. by in, under, about, etc.) hide, esp. for sinister purposes. 3 (as lurking adj.) latent, semi-conscious (a lurking suspicion).
n. Austral. sl. a dodge, racket, or scheme; a method of profitable business. lurker n.
[ ME perh. f. LOUR with frequent. -k as in TALK ]