e-grudge
A grudge you keep because of someone you only know from the internet. Usually starts when people get too big for their britches on message boards or fantasy teams.
He said my draft was the worst. I now have an e-grudge and I will beat him in the league.
He kept telling me I was gonna lose. I now have an e-grudge and I will ruin his season.
He insulted my playlist. I now have an e-grudge and he is doomed.