Katiuska is an ancient word for awesome. Created by demigods in ancient Egypt, Katiuska is a term often used for people who are just the absolute best. Also they tend to have an extraordinary laugh.
It refers to the unique words and spellings that actress Stana Katic uses on Twitter while addressing her fans, which makes her even moreadorable... such as, Coolios, Doods, Girlz, Humanoids, Kiddies etc.
Shitty person who love shitty people and is just a bitch who thinks bad of herself and her mind can't be changed. She cares too much about people but she doesn't care as long as their happy so yeah :)
A being of pure awesome who thinks way too highly of himself. Katimusha is a advid anime fan and thinks he knows stuff but generally has only average knowlege of the field.