baka = idiot
kuso (koo-so) = shit
chin chin = chinpoko = penis
mune (pronounced "moo-nay") = breast
dame (dah-may) = useless (this one's good if you use it in addition to baka for calling someone an idiot)
kutabakchimae (coo-tah-bah-coo-chi-ma-eh) = fuck you!
kutabare (coo-tah-ba-ray) and zakennayo (za-ken-nah-yo) also mean fuck you in slightly different contexts
oushikuso (oh-oo-shi-coo-so) = bullshit
bobo = pussy/cunt
kusotare (coo-so-tah-ray) = asshole (literally)
That ought to be pretty good for a start lol. Have fun with'em
