If nobody has yet figured out what it is, it is UNIDENTIFIED
If it is moving through the air (other than just falling straight down), it is FLYING
If it is "something perceptible by one or more of the senses, especially by vision or touch; a material thing", it is an OBJECT
So if I hit a baseball in the air or shoot an arrow and nobody knows what it was, but saw it moving, and couldn't identify it, then it is a UFO.
Ban Major League Baseball. We need Bow Control laws.
How come there are so many reported landings and "creatures" come from them but all the evidence suddenly disappears?
I know. After they destroy half the world, some obscure scientist comes up with a bizarre argon-generating blaster that kills them all then governments cover it all up by changing all the maps to show the destroyed cities never existed.
Then again, aliens would explain why so many people in this country turned into idiots and bow to Lord Donald. Mind Control.
Hey, it's not like I am against mind control as people have a right to have no brain. I don't want to be bigoted at those without brains. There is nothing wrong with mind control as long as it's me doing the controlling.