make a dog's dinner (of something)

To make a mess of or completely ruin something. I thought I could trust Jim to finish the business proposal, but he made a dog's dinner of the whole thing!

Common Names:

Name	Pronounced	Usage
Lang	[læŋ]
Dorottya	-	Hungarian
Keen	[ki:n]
Maile	MIE-le	Hawaiian
Moss	-	English (Archaic), Jewish
Narek	-	Armenian