Karen at Shambolic Jigsaw has a neat article on Japanese slang that I liked:
Japanese Teens Creating Own Language
%u6C17%u6301%u3061%u304C%u60AA%u3044 (unpleasant or disagreeable) becomes %u304D%u3082%u3044.(I’m having an encoding problem – just click the link…)
I’d heard “Kimoii” for “Kimochii Waruii” before, but the others are fun too.