It all started when we blew up the time pigs, the Time Masters, now history’s all screwed up, and it’s up to us to unscrew it up. Half the time, we screw things up even worse. So don’t call us heroes, we’re something else. We’re legends.
in the first few fairly oddparents shorts cosmo is way more smart and not nearly as unfunctional as he is now - so i made a tragic backstory out of it, to give cosmo’s increasing stupidity throughout the show a reason :’D
(although timmy is probably just surprised to hear cosmo talk in sentences that have internal logic)