In the Egyptian dialect of Arabic, this means "this is bad." usually this phrase is said to little kids - it's kinda like "naughty boy/girl" or "that's naughty"
Jim: "Hey Mostapha, did you know yesterday I smacked my Reading class teacher on the behind?"
Mostapha: " kidda wihish ! Gosh I can't believe it."
Mostapha: " kidda wihish ! Gosh I can't believe it."
by Adel7 December 1, 2007