h4x0r
A h4x0r is someone who looks like they're doing cool stuff but are actually just lucky.
In-game chat: 'You’re a h4x0r, I just got sniped.'
Tweet: 'That guy must be a h4x0r, he got me 10 times in a row.'
DM: 'You’re not a h4x0r, you’re just good.'