Definition of "alamak"

alamak

interjection
1. (colloquial, Malaysia, Singapore) Oh dear, oh my God (expression of shock)
  Quotations
  “Aiyo! Nearly langgar leh! So scary ah! Alamak! Why you go so fast!” he is heard exclaiming to a companion in his car.
  2019, Cherlynn Ng, “Near-collision with Mercedes going against traffic during rain in Yishun: 'So scary ah!'”, in AsiaOne‎