definition of "daaang" <--notice THREE a's. this is the correct spelling.
you might see me leave this as a photo comment. it's meaning is very simple. "daaang" means "that is so hot or stunning or interesting or funny, etc that my brain just seized up (possibly due to blood leaving the brain for other parts of the body) and I can't think of anything to say except "daaang".
more on the origins of "daaang" to come...
