Galongwallah - It's the word you use when you're trying to sound fancy but

It's the word you use when you're trying to sound fancy but you're just making it up. It’s like a poser version of 'word.'

'That dress is galongwallah,' she said, even though it was just a normal dress.

'He called it galongwallah, but it was just a weird thing.'

'I said galongwallah, and no one questioned me.'