1900, Rudyard Kipling, From Sea to Sea: Letters of Travel‎'If he says he won't come, he won't,' she said, as though he were one of the elemental forces of nature instead of a spankable brat...
1996, James C Bulman, Shakespeare, Theory, and Performance‎...the level on which she can be pert, sly, and spankable, and fill out a small personality.
2000, Neal Stephenson, The diamond ageJudge Fang knew that Dr. X controlled legions of criminals ranging from spankable delinquents up to international crime lords...
