rhyming slang for "prick," which would connect it rather to wick
"dairy farm," now surviving, if at all, as a localism in East Anglia or Essex, it was once the common O.E. wic "dwelling place, abode," then coming to mean "village, hamlet, town," and later "dairy farm" (e.g. Gatwick "Goat-farm"). Common in this latter sense 13c.-14c. The word is a general Gmc. borrowing
from L. vicus "village, hamlet" (see vicinity
). Cf. O.H.G. wih "village," Ger. Weichbild "municipal area," Du. wijk "quarter, district," O.Fris. wik, O.S. wic "village."
c.1275, earlier wick (12c.), apparently an adj. use of O.E. wicca "wizard" (see wicca
). For evolution, cf. wretched
. Slang ironic sense of "wonderful" first attested 1920, in F. Scott Fitzgerald.