The Collaborative International Dictionary of English v.0.48:

Ratten \Rat"ten\ (r[a^]t"t'n), v. t. [Prov. E. ratten a rat,
   hence the verb literally means, to do mischief like a rat.]
   To deprive feloniously of the tools used in one's employment
   (as by breaking or stealing them), for the purpose of
   annoying; as, to ratten a mechanic who works during a strike.
   [Trades-union Cant] --J. McCarthy.
   [1913 Webster]