emphasis If you say that prices or confidence are sky-high, you are emphasizing that they are at a very high level. Christie said: `My confidence is sky high.' the effect of falling house prices and sky-high interest rates. Sky high is also an adverb. Their prestige went sky high
to a very high level; "prices have gone sky-high"; "garbage was piled sky-high"; "the men were flung sky-high by the explosion"
(with verb `to blow') destroyed completely; blown apart or to pieces; "they blew the bridge sky-high"; "the committee blew the thesis sky-high