A joke phrase usually posted in the comment section of a YouTube animator. It originates from a series of animations called Leo and Satan by OneyNG. People continuously asked him to make more episodes when he stopped, which led other users to comment the phrase "make more leo and satan" to animators who have a similar humor/style to Oney.

September 9th
A day solely dedicated to the utter and unabiding hatred reserved only for the incalculably strange and perverse individuals who are addressed as ‘Leo’

A fucking shitty bitch of a cunt that has no other use except to lick peoples balls. He is a gay dickhead who plays geometry dash in his grandma's basement on his $10, second hand, 1979 iPhone negative 2.

A term used to shut Leo up because he said something off-topic and stupid because he is so retarded.

He is a Very cool dude

If you meet him make sure to get his autograph because woah he’s an awesome guy :)

The act of having sex with a full grown midget, then afterwards you shove the midget into a box and send it to anywhere in the world via the Postal Service.

an emotional piece of shit who can easily hide their feelings but can let their feelings out to the person they love. they are so badass but can have days where they're just..nothing.