Someone who tries too hard to be hacker (mostly children)
9 year old: i just pulled ur ip
Someone with an iq above room temperature: I use a vpn u skid
Basically the same thing as Dog Water, used as an insult to someone who's not good at something.
Child 1: *fucks up a game of football*
Child 2: Bro you're so fucking Dog Margey at football learn how to play