Whank

[Greta]

Old variant of word wank, meaning masturbate. Can be a noun or verb: a [whank]; to whank.

Defined by the Oxford [English Dictionary], second edition, 1989:

wank, n. (a.) Also whank.

1. Of a male: (an act of) masturbation. This word and its derivatives are not in polite use. 1951 [Dict]. Slang (ed. 4) 1220/1 [Whank], (male) self-abuse: low: from ca. 1870. Perhaps echoic.