1. [1940s+] (also wank-off) masturbation.
2. [1970s+] in fig. use, self-indulgence.
3. [1980s] (US campus) a person who is logged on to a computer (usu. the Internet or involved in hacking) for a long time.
4. [1990s+] nonsense; thus wankology n.
5. [2000s] something worthless.
6. see wanker n. (2)
[2010s] general term of abuse.
see separate entries.
[1970s+] worthless, useless.
[1990s+] an act of masturbation while wearing a condom.
[20C+] to masturbate.