Someone really stupid, sometimes, too stupid to realize his own stupidity. The current president of the USA, Donald Trump.
The president of the US is a complete nincompoop, a delusional idiot who thinks that the world revolves around him.
A complete elmore, maroon or jackweed. Somebody with shit for brains. A fuck up of the highest order.
Bush elmored Katrina showing what a true nincompoop he really is.
noun Slang term for anyone who is a devoted fan of Nine Inch Nails, or NIN, usually only used by other fans.
Only a true NINcompoop would watch the band's webcam for five hours, waiting for something to happen!
A word in old english which is a classic insult a no brain a lil fucker something like that
Get up you fucking nincompoop
Something I would call a friend if he/she should say summit stupid which is blatenly obvious!
eg.
louisa - i think i just saw a dog fly!
laura - dogs cant fly u nincompoop!
Tyrone: "Boobshakapagloopadiggajopa"
Bob:" you nincompoop"
"Dude, that guy is a nincompoop!"
"omg, hes so stupid, what a nincompoop."