Definition of "diam"

Diam lah, you have no gal let alone have a son or daughter.

2004 August 21, intruder, “God so loved the world”, in soc.culture.malaysia (Usenet)

If the answer is affirmative, then he is qualified to talk to us. Otherwise, diam lah.

2012 September 23, “Najib wants more time for another run.”, in soc.culture.malaysia (Usenet)

So diam lah, baruah bangsat!

2013 June 7, <par@tmnet.net.my>, “Mooted online media control 'not politically motivated'”, in soc.culture.malaysia (Usenet)