AH THEN?/
ARBO/ARBUTHEN
The Singlish equivalent for "of course" or "duh!". "Ah then?"
is the sarcastic response given to blindingly obvious questions or
statements. Somehow, it evolved into "arbuthen" sometime during the
1980's (possibly a deliberate mispronunciation of "Ah, but then?"),
and has now become "arbo".
For example,
Question: "After ORD, our NSF vocation is also our reservist ICT
vocation?"
Answer: "AH THEN?/ ARBO/
ARBUTHEN, then NS train us for a particular vocation for
fark?"