Oencil Share definition Flag It's another word for when you stick a pencil up our butt and this unusual noise comes out of your mouth. My girl butt a pencil up her butt and screamed "OENCIL!" Oencil by Blah blah blabbbbby April 1, 2022 0 0 Get merch Get the Oencil mug. Buy Now — $32.95 See more merch