upset the apple cart

Fig. to mess up or ruin something. Tom really upset the apple cart by telling Mary the truth about Jane. I always knew he'd tell secrets and upset the apple cart.

Common Names:

Name	Pronounced	Usage
Blevins	['blevinz]
Aram (2)	-	Armenian
Hamilton	HAM-il-tən	English
Kennedy	KEN-ə-dee	English, Irish
Bertram	BUR-trəm (English), BER-trahm (German)	English, German, Ancient Germanic
ÉBer	-	Irish Mythology