o pai tá on
It means your dad is so high he thinks he’s a king. Used when a guy is single and having the best time of his life. Or when he’s too drunk to remember his own phone number.
He said, "O pai tá on!" after drinking 3 sodas and eating 2 burgers.
He used it in a tweet after getting dumped by his girlfriend.
He said it to his friend while they were playing video games at 1 AM.