obnoxiousivity
When you're so dumb that you say 'more obnoxious' like it's a real word, and you're proud of yourself.
'I'm not dumb. I'm just being smart.', said by a kid who spelled 'smart' as 'smaert'.
'Your obnoxiousivity is like a brain-dead elephant in a pizza shop.', said by my friend who also hates elephants.
'You're like a toddler who thinks they're a genius.', said by my teacher who also had a headache.
xs