Definition of higgledy-piggledy adverb from the Oxford Advanced American Dictionary

 

higgledy-piggledy

 adverb
adverb
NAmE//ˌhɪɡəldi ˈpɪɡəldi//
 
(informal)
 
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in a messy way that lacks any order Files were strewn higgledy-piggledy over the floor.
higgledy-piggledyadjective
 
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a higgledy-piggledy collection of houses