‘Kooja’ (adj.) is used to describe a friend, mainly a friend(s) that you are close to. The word originated from a roblox username that me and my friendsthought was unusual and funny.
Koojana is a very clingy person. Once you've said hi, she'll think your are best friends. Once she has a crush on you it's over. she will stalk you to death. However she is very cultivated, reads a lot and is open to talk about anything. She is funny but easily exaggerates everything.