YOU SAID:
you are so crazy dude. i am laughing!
INTO JAPANESE
あなたはとてもクレイジーな男です。私は笑っています!
BACK INTO ENGLISH
you're such a crazy man I'm laughing!
INTO JAPANESE
あなたはとてもクレイジーな人です、私は笑ってしまいます!
BACK INTO ENGLISH
You are such a crazy person, it makes me laugh!
INTO JAPANESE
あなたはとてもクレイジーな人です、それは私を笑わせます!
BACK INTO ENGLISH
You are such a crazy person, it makes me laugh!
That didn't even make that much sense in English.