burst (one's) bubble

To bring someone back to reality, especially if they are dreaming or fantasizing about something unrealistic. Look, I hate to burst your bubble, but there is no way you're getting into Harvard! You're a C student!

Common Names:

Name	Pronounced	Usage
Maurice	MAWR-is (English), mə-REES (English), mo-REES (French)	English, French
Benedito	-	Portuguese
Kasparas	-	Lithuanian
Veera	VE:-rah	Finnish
Edna (2)	ED-nə (English)	Biblical
Blandina	-	Ancient Roman