Erm... Google to the rescue!
Chan
Chan (ちゃん?) ("kins") is a diminutive suffix; it expresses that the speaker finds a person endearing. Thus, using chan with a superior's name would be condescending and rude. In general, chan is used for babies, young children, and teenage girls. It may also be used towards cute animals, lovers, close friends, or any youthlike woman.
Although traditionally honorifics are not applied to oneself, some young women adopt the childish affectation of referring to themselves in the third person using chan. For example, a young woman named Kanako might call herself Kanako-chan rather than using a first person pronoun.
Taken from wiki :lol: if you need any more honorifics