When you do something or you don't want them but I don't want you so your the best mistake. I didn't want you before but now I do and it also mean you did something you regret and now you don't regret it anymore
by Magic awesome banana painters February 8, 2015
by Shea butter0928 October 6, 2019
A fan fiction of Oikawa and Iwaizumi, that will tear your heart in two. Make you cry for hours on end. Also after reading it, the song (specifically the piano version of it) A Thousand Years by Christian Perry will make you cry every time you hear it.
"Hey! Have you read the fanfic Best Mistake?"
"Ack! Don't remind me of that, I cried for days on end because of that fic!"
"Ack! Don't remind me of that, I cried for days on end because of that fic!"
by _TooruOikawaFavoriteFoodIsMilk December 18, 2021