make a dog's breakfast (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 breakfast of the whole thing.

Common Names:

Name	Pronounced	Usage
ÅSmund	-	Norwegian, Danish
Vidar	VEE-dahr (Swedish)	Swedish, Norwegian, Danish, Norse Mythology
Jenifer
Yakub	-	Arabic
ŞİRİN	-	Turkish
Connell	KAHN-əl	English (Rare)