a google phrase search has Tess of the D'urbervilles page 386 "Above, Jupiter hung like a full-blown jonquil, so bright as almost to throw a shade. " but that's a different definition from the new Urban Dictionary.
Another totally different version is seen in the 1800's.
http://goo.gl/WTLR6 Dictionary of Latin synonymes: for the use of schools and private students page 347 "Adumbrare throwing shade upon something taking the shade of something that is making a hasty drawing sketching the chief traits"
Jan 22, 2013
Looking for tweets for throw shade.
‘throw shade’ has been looked up 36 times, commented on 1 time, and is not a valid Scrabble word.