daddy-o
An older guy who you think is a total loser. You call him ‘daddy-o’ to mock him, but he still thinks he’s the king of the world.
'Daddy-o, you still think you’re the king of the world?'
'Daddy-o, you tried to impress me with your ‘groovy’ speech.'
'Daddy-o, you showed up to my birthday in a beret.'