jack the cunt
A Jack Cunt is a guy who thinks he’s the only one who matters. He’d rather take a nap than help you, and when he does help, it’s just to show off and get all the credit.
He said he’d help me with the project, then spent the whole time on his phone playing Candy Crush.
He walked out of the restaurant when the bill came. I had to pay for his whole meal.
He said he’d come to the party, then didn’t show up until the cake was already eaten.