the word “yaoi” used in my highschool days. “yatta (=i've done), owatta(=it has finished),ii-kimochi(=i feel good)” is meaning of “yaoi”, probably. there wasn't word “bl” yet.
when i heaed that word, i remembered i was confiscated yaoi book of saint seiya by teacher on next day of university entrance exam (more precisely, i forgot book in classroom. and when i returned, book disappered) .
that's why, “yaoi” was so nostalgic and a little laughable word for me.