What does "Mantu kurang ajar, temene sami mawon"
I'm thinking it means I'm a rude son-in-law but I want to be sure.

"Mantu kurang ajar, temene sami mawon"

Question

What does "Mantu kurang ajar, temene sami mawon"
I'm thinking it means I'm a rude son-in-law but I want to be sure.

"Mantu kurang ajar, temene sami mawon"

Answer

Yup you're right. It means what a rude son-in-law, either his friend.

Answer

lol :P Where did u find these sentences?

Mantu kurang ajar = a rude son/daughter in law
sami mawon = (from Javanese language), sama saja (the same)

Answer

"temene sami mawon" is not bahasa, but its a javanesse language