Inconcrete

an insult describing someone who agrees with something like a group decision but then forgets it or remember something diffrent.
You inconcrete fucking imbacile! You always forget!
mugGet the Inconcretemug.

Inconcrete Imbecile

A term to use when your friend is acting so dumb that it would be an insult to the word idiot to describe the friend with that word.
Me: You are an Inconcrete Imbecile!
Friend: uh ok...
mugGet the Inconcrete Imbecilemug.