noun Northern U.S.
Examples from the Web for whippletree
After three quarters of an hour or so I was suddenly startled alert by hearing the squeak-squeak of a whippletree out on the lawn.The Four Pools Mystery|Jean Webster
The whippletree, dangling from the end over the beaten circular track, seemed cracked with heat and age.Foes in Ambush|Charles King
Twelve “Swingle trees” (whippletree, whiffletree, singletree) are listed in the inventory.The Cultural History of Marlborough, Virginia|C. Malcolm Watkins