padsy
A guy you're stuck with. Like a bad haircut you can't get rid of. Everyone knows you're a fool for hanging around him.
'Why did you marry that padsy?' 'Because he promised me pizza every Saturday.'
'He’s my padsy. We’ve been stealing from the same vending machine for 10 years.'
‘You’re still with that padsy?’ ‘Yeah, he still says I’m the best thing since sliced bread.’