Slang
yoseyo!: If someone is bothering you, you can say this. It means, "Quit it!!"
Tsuman nai :Boring slang
iikaji: It's cool
kuru kuru pa: This is a classic insulting phrase. It referrs to one's insanity.
ge!: Yuck!
dokodemo doa-: It means, "Anywhere Door." This is an imaginary door that can take you to anywhere you wish. It appears in a popular cartoon, called "Doraemon."