The definition of dah is quite simple. The word itself means something like an ironic yes. Originally it comes from the russian da. This word means yes. This word has then been picked up and is now being used again and again in its original russian form. Though the tone has been changed a little.
by Amendir December 17, 2003
by Oh yeah yeah Oh yeah yeah January 20, 2019
by Skrizzle April 13, 2006
Extemely depressing or stupid.
by SeanPCampbell23 December 03, 2008
by Zwashere October 25, 2007