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

anonytard 

A term for someone who is both wishing to remain anonymous and is an idiot.

I’ve seen letters to the Editor before from that miserable and gutless anonytard.

anonytard by Dr Bunnygirl September 29, 2019

anontard 

An anonymous retard. Someone who gives their an opinion on a matter but lacks the balls to say who they are. The term is commonly used on internet message boards.

Why don't you crawl back under the rock you came out from under, anontard? Come back when you get some balls.

anontard by Tom Carmichael June 22, 2006