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
Louise	loo-EEZ (French, English), loo-EE-se (Danish)	French, English, Danish, Swedish, Dutch
Ezgİ	-	Turkish
Sheryl	SHER-əl	English
Marita (2)	-	Swedish, Norwegian
Arnout	-	Dutch
Fortunata	-	Italian, Spanish, Portuguese, Late Roman