Examples from the Web for rattish
I was not all surprised, well knowing his rattish dispositions.Memoirs of the Court and Cabinets of George the Third, Volume 2 (of 2)|The Duke of Buckingham
The wicked rodent growled out something in broken Rattish, and retired to his hole, out of which he shook his tail in defiance.Letters of Peregrine Pickle|George P. Upton
We know all his evil cunning, and most of us have seen the rattish, yellow streak that runs clear through him.
Barry covertly watched Natalie while Leyden's rattish characteristics were under discussion.