U.U.F.O. 

Album by Camellia and another version of the Unknown Flying Object (aka. UFO) that's more advanced, greater version with better technology, probably better than the invention of the Paradise Ship from Kirby's Return To Dreamland, or the Haltmann Company's UFO in Kirby Planet Robobot, used to take over all of Planet Popstar.

The U.U.F.O is known as the "Mystery Circle Ultra" or "Ultra Unknown Flying Object", according to the 1st album song by Camellia with the name “Mystery Circle Ultra / U.U.F.O”.

As mentioned before, it is predicted to be a more advanced version of the average UFO, explaining the name UUFO.

(DEFINITION IS FOR THE ACTUAL OBJECT THAT HAS YET TO EXIST OR BE PROVEN TO EXIST)

guy: yo you ever heard of the U.U.F.O.

guy2 : the what

guy: the ultra unknown flying object

guy2 : yo i saw something similar to that right now above our house!

guy: wait what tHE FUCK-

U.U.F.O. by yurusitaka February 14, 2022

U.F.O

Unidentified Flying Ostrich

Omg look at that U.F.O I thought they were flightless!

U.F.O by Crilbus Bowlingfaggot October 13, 2019

U.F.O

1.Unidentified flying object. The term is used to when relating to "Alien ships" or "Flying saucers"

2.Can also be used to relate to actual unidentified flying objects such as an enemy aircraft. Although not knowing exactly what it is.

3. Term used by rednecks to define aliens.

1. Hey brandien! Lookie' wats' I foun'ded' Dun here in de' durt'! I dun founded me a yoo ef oh!

2. Mr president. There has been another sighting of a U.F.O Immediete action will take place.

U.F.O by Refoops December 28, 2005

P.U.F.O. 

Noun: A possible unidentified flying object.

Did you see that light in the sky? That was a P.U.F.O.!

P.U.F.O. by Hartz July 21, 2009

U.F.O. 

You fuck off

I'll shut up when U.F.O..

U.F.O. by Yullin June 11, 2015

U.F.O. 

U.F.O. stands for: Unidentified. Flying. Object.

It's what all the phoney pics and such are all about, aliens, outer space, etc.

Farmer Billy: "Pops, I think I saw myself a U.F.O. last night"
Farmer Tom: "No sonny, there is no such thing as aliens"

U.F.O. by Marauding Master November 7, 2008

U.F.O. 

The sexual act in which a man performs on a woman (preferably someone's mother). First all the lights are turned off for total darkness. Next the man slips a glow-in-the-dark condom over his penis and then begins to float around the dark room ; thus giving the effect of a flying spaceship, or other un-identifided floating object. The woman then is invited to catch such object with whatever she pleases, i.e. her mouth or other orifaces. When the man grows weary of floating around, he then proceeds to crash-land his "ship" into the woman's "Area51" .

"Hey Mitch, I totally U.F.O. 'd your mom last night ! "

"She always loves when I crash my U.F.O. in her. "

U.F.O. by Matty58 March 26, 2008