'Sky-high' definitions:

Definition of 'sky-high'

(from WordNet)
adverb
(with verb `to blow') destroyed completely; blown apart or to pieces; "they blew the bridge sky-high"; "the committee blew the thesis sky-high"
adverb
In a lavish or enthusiastic manner; "he extolled her virtues sky-high" [syn: sky-high, enthusiastically]
adverb
To a very high level; "prices have gone sky-high"; "garbage was piled sky-high"; "the men were flung sky-high by the explosion"

Definition of 'Sky-high'

From: GCIDE
  • Sky-high \Sky"-high`\, adv. & a. Very high. [Colloq.] [1913 Webster]