Da Loser - What you call yourself when you're so sure you're going to b

What you call yourself when you're so sure you're going to beat the person you're playing that you're already planning their humiliation.

'Da Loser here, you're gonna get humiliated.'

Told my friend 'I'm Da Loser, you're gonna lose.'

Sent my brother a message: 'Da Loser here, ready to beat you.'