A strange dialect of fangirlese, comprised of a mixture of misspelled English and misspelled, gramatically incorrect Japanese. Generally seen in anime fan fiction. Highly fucking irritating.
"You baka idiot! I'm a little chibi, wakata! Yadda yo! Iya!" etc. etc. etc.
All of the above are incorrect; "baka idiot" is redundant, as is "little chibi." "Wakatta" is spelled with two Ts in the traditional Romanization. "Yadda yo!" is a bastardization of "Ie da yo!", and "Iya" is a fucked-up version of "Ie."