Wow! Oh my! (used in surprise and/or admiration).(interjection)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "wahlau" in a sentence
"AAAAAAAAAAAAAAH.wahlau. but thankfully. there were still some of lee joon ki he's not all that popular yet."
"Hong Chern Wern: wahlau ... geng. .dunno how many times he's going to change his tyre every month. .lol."
"Posts: 1,734 wahlau dont bluff me leh ok i go down see see look look this wkend hehe ok i go down see see look look this wkend hehe no bluff lar unless those store close shop You may not post new threads"