The funni word is nincompoop. (nin'com-poop)
Doesn't this word just make you want to laugh.
Here are some fun facts.
Google it: If you google image the word "nincompoop" this is the first image that you get! Dead on!
The definition: n. A silly, foolish, or stupid person or a simpleton. (1670-80).
Also used interchangeably with nincompoopery (nin'com-poop'er-y) or the adjective nincompoopish (nin'com-poop'ish).
Unforetunately, the origine and the history of this word remain unknown, but there is specualtion that it may come from "non compos mentis" (insane mentally incompetent- 1607), but ethymologists disagree.
I guess we will never really know where this word came from, but I strongly encourage you to use this word.
"Can I have it in a sentence please?"
Give me your best shot!