obsessivingly
When you're so obsessed with something that you start making up fake suffixes just to make it look cooler.
'I made up a whole new suffix just to make it obsessivingly fancy. It's -xly now.'
'I'm obsessivingly adding fake suffixes to my words because the real ones are too basic.'
'I just invented -zly because I'm obsessivingly into making things up.'
xs