I see you're continuing the unfounded personal attacks when you see statements that call into question your fixed opinion. It's not a very nice trait. For your edification, "casting dispersion" is derived from the ancient spanish phrase "Castio Dispersionio " and it remains exactly what you are doing---metaphorically, of course

I agree, its slang, but properly used, nonetheless.
http://www.urbandictionary.com/define.php?term=Casting+Dispersions
surf