Definition of "whiffletree" [whif•fle•tree]

• Northeastern U.S. The pivoted horizontal crossbar to which the harness traces of a draft animal are attached and which is in turn attached to a vehicle or an implement. Also called singletree, swingletree; also called regionally whippletree. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "A huge bat flew down, landed on the whiffletree, and turned into a leering vampire."
• "And the Bates family watched out the window while Coach Bob put little Win in the driver's seat, gripped the whiffletree in his hands behind his back, and heaved the sleigh into motion; the great sled skidded down the snowy yard and into the slippery street that was still lined with elms, in those days — 'As fast as a horse could have pulled it!' my mother always said."
• "This did not offend the young plowman, to judge by the expression of his face; but he said nothing, and, stooping down, loosened the chains of the whiffletree and turned the faces of the tired horses homeward."