Word of the Week #10

(In) Cahoots (plural noun)
Dates back to 1929, meaning to be in a partnership or conpiracy with someone. Most commonly a secret or illegal partnership. E.g. "The tall man and the scary woman were in cahoots."

Source:
http://dictionary.reference.com/browse/cahoot
http://www.merriam-webster.com/dictionary/cahoots
http://www.answers.com/topic/cahoots
http://www.macmillandictionary.com/dictionary/british/cahoots