Grambo

A person of moderately advanced age who is both level headed and humorous. Also has an incredible memory and is hard to confuse.

You know aunt Mary? I had no idea she was such a grambo! I learned more over coffee than I did in Highschool.

Binger

Someone who believes they see evil or malfeasance in everyday actions

Also

A total failure

Well he is being a real binger today- he didn’t do anything except call HR on the office plants again.