Bunky and I frequently watch TV program called Future Ratboy.
I'm Future Ratboy and Bunky is his annoying sidekick, Not Bird, except Bunky's not a bird and he doesn't say 'NOT' after everything.
I read the cartoon 'I am not a loser'. The above is not understood by me. Here Bunky's role is a helper of name 'Not Bird'. But I am stuck with the following part after the word except. How can we understand ?