SHOGANAI means "you cant help it" or "its supposed to happen".
MONDAINAI means "no problems".
SHIMPAI SHINAI DE means "dont worry".
AISHITERU means "I love you"
DAISUKI means "I love you/I really really like you". this is more commonly said amongst younger couples.
FE-RA ONEGAI means "Can i have some head".
MATA YAROU means "wanna do it again" or "wanna go again" or "lets do it again" depending on how you say it. hehe...
HAYAKU AITAI means "I miss you". but direct translation is "I want to see you soon", which works nice too.
DAMARE means shut up! and YARASHII NA~ means you re nasty.
not ALL the japanese girls said this to me.
HATARAKITAI actually means "i want to work." but it could also have the same connotation as give me a job.
NANDEYANEN is from Osaka and it means kind of like "what the hell?!"
NAMENNAYO is a gangster street term for like "what the fuck are you looking at!" but literally it means dont lick at me. whatever the hell that is. why "lick"? i dont know.
DAMARE means shut up! if you want to mix it up, you could say KUCHI DAMARE which is shut up your mouth!