'Amoi' is a way of calling female Chinese descendent in Malaysia. It is a very casual way of calling someone. Sometimes it is too casual to the extent of becoming rude.
You may try google for the word 'Amoi'.
Most of the Google results are related to female as sexual object.
How to tell everyone that I do not like to be called 'Amoi'?
I just changed my Facebook status.
Simple and yet dangerous. How would people take my rejection of the casual way of calling me?
I will see it in near future.