A word like 6th graders use to basically say go fuck yourself. The reason they say pwn instead of go fuck yourself, is because there moms won't let them say fuck yet.
Guy 1: Did I am going to pwn you in mario cart you won't know what hit you.
Guy 2: Dude I hate to tell you but your dead just died of prostate cancer.
A misspelling of own, this surprisingly popular term is used to describe owning someone. The word has been referenced in video games like Terraria a with the Pwnhammer.
Short for pown, which is short for potatown.
It's when you throw a potato at someone's computer.
It has since come to be used more figuratively than literally.