whippletree

名词 whippletree:

1. a crossbar that is attached to the traces of a draft horse and to the vehicle or implement that the horse is pulling
   同义词：whiffletree, swingletree

whip.ple.tree

n.Upper Northern U.S. （名词）【美国北端】
See whiffletree See Regional Note at whiffletree
参见 whiffletree参见 whiffletree

来源：
Perhaps blend of dialectal whippin [whippletree]
可能混合了 方言 whippin [车前横木]
swingletree
swingletree