Undecided questions
What is 'amboi' mean ?? TT

''Amboi'' mean good/nice ( more like a figure of speech) like .... oh amboi sekali : oh'' that's so good'' or oh ''how pretty that wedding dress''
but it's ancient sayings ..
rarely used
maybe,still used in the prose-prose, poetry or couplets

amboi = wow...

I think your question has been answered by Cathrine & M3L1A, so in short amboi=wow, but amboi is never used anymore, now instead of people already use the word wow.
And if you if say amboi today in 2012, people around you definitely ask "what year did you come from my man ? " hahahah :)