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
Renaud	-	French
Custodia	-	Spanish
Dagmar	['dægma:]
Zoe	ZO-ee (English), DZO-e (Italian)	English, Greek, Italian, Ancient Greek
Turner	['tə:nə]
Joffrey	-	French