Definition

The 2016 Pen-Pineapple-Apple-Pen song, a viral earworm so catchy it lodges in your skull and stays there long after you've stopped listening. The only known cure is more PPAP, which is a cure that causes its own symptoms.

Example Usage

I've been humming PPAP all day and I can't make it stop.

Source: Urban Dictionary (https://www.urbandictionary.com/define.php?term=PPAP&defid=10591263)