Dadfather
A guy who helps other fathers when they're failing at life. He's like a dad superhero who shows up with advice and a middle finger to your problems.
'I asked my dadfather if I should quit my job. He said, "No, but if you do, I'll back you up."'
'He showed up at my kid's birthday party with a six-pack and a warning: "Don't let him grow up to be a disappointment."'
'My dadfather texted me at 3 a. m. with a photo of his kid's failed math test and said, "You're not alone in this."'