When you cum in any paper whether it be a napkin or actual paper and you throw it on someone's lawn preferably someone you don't like or an ex. This is best done when with your gf because it's just creepy alone.
"Me and my gf paper boyed that bitch's house last night"
to get revenge on ur ex you and another girl should go paper boying
" That bitch got the latest addition of the ( You and your gf's name here) times