Whipsaw
Pronunciation : Whip"saw`
Part of Speech : n.
Definition : Defn: A saw for dividing timber lengthwise, usually set in a frame, and worked by two persons; also, a fret saw.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder