What is the meaning of Wank?

To masturbate.

To argue in an inappropriate manner or about pretentious or insubstantial matters; to engage in wank.

An act of masturbation.

An undesirable person.

Nonsense, rubbish.

Ridiculous, circular or inappropriately elaborate argument about something, especially if obnoxious, pretentious or unsubstantial.

Drama, turmoil, or disagreement within a fannish space.

singular imperative of wanken

first-person singular present of wanken

Source: wiktionary.org