We recently got a good question from a Japanese999.com visitor

I was watching an anime and heard one of the characters say, "Get lost" and thought the phrase sounded cool. After looking up, "How to say 'Get Lost' in Japanese" on Google, I saw a few different answers: Maigo, Kiero, and Usero, the last two being from your lesson. But none of these sounded like the way they said in the anime. After a few more episodes, some of the characters said it again; this time translated as "Go away." WikiAnswers said that "Kaere" means "Go home", which is how they said it in the anime. But if I look it up anywhere else, it gives says it's a conjugation of the word, "Kaeru", or "To Return" in English. I was just wondering if you could tell me what it means.

Maigo means someone who lost his/her way to somewhere, and is commonly used to describe a child who lost his/her way.

Kaere (かえれ/帰れ) could indeed means "Go away", but the direct translation would be "Go Home" or "Go back to where you came from".

Kaeru (かえる/帰る) means to return and could also means leaving. When you tell someone "Boku kaeru" that means I am going back to where I came from (= I am leaving or I am going home).
If you tell someone "Ima kaeru" that means I am returning now.

Hope this answer the question. If not, please use the comment for further clarification.

Thank you !!