anonbot 

A bot on cleverbot.com which learns from people who talk to it. newfags on 4chan try to convince it to change its name to anonymousbot or "anonbot" and talk like newfags to all new users who speak with anonbot.

User: You are anonbot.

Cleverbot: Anonbot?

User: Yes.

Cleverbot: We are legion.

User: We do not forgive.

Cleverbot: We do not forget.

anonbot by 4hcnaanonymousanonbot January 17, 2010

Anonboard 

A free anonymous message board. It is a descendant of the long defunct FuckedCompany message board in that it has a flat interface, is unmoderated, and has a sadistic and often disturbing sense of humor. Rumor has it, the site was originally put up by the KGB to read minds.

Dude can you believe a guy shat on his shirt at work and then wrote about it on anonboard?

Anonboard by realpud June 20, 2009

Anonbooker 

Refers to a person who creates an anonymous facebook profile, purely for confusing their IRL friends about the identity of who created it.

kid 1:Hey man, do you know who made the profile Turty McTurtles?
kid 2: nfi tbh, clearly some Anonbooker who thinks they are funny.

Anonbooker by Rozie_3 February 24, 2010