o pai tá on
It means your dad is so high he thinks he’s a god. Used when a guy is single and having the best time of his life. Or when he’s too drunk to remember his own name.
He said, "O pai tá on!" after drinking 5 sodas and eating 3 burgers.
He used it in a tweet after getting dumped by his ex.
He said it to his friend while they were playing video games at 2 AM.