WTF Ownt Share definition Flag (adj.) Suprisingly ownt be something obnoxious and unordinary. Dude 1:Dude, I was setting a high score in this new online video game, when all of a sudden a rabbit came out of nowhere and jumped on my power button! Dude2: WTF Ownt! WTF Ownt by K-Mezz LIGHTNING October 4, 2006 Get the WTF Ownt mug.