when two Sundays meet

Never. Usually said sarcastically. A: "When are you going to help me clean out the garage?" B: "How about when two Sundays meet?"

Name	Pronounced	Usage
Sri	-	Indian, Telugu, Tamil, Indonesian
Mateja (2)	-	Serbian
Iapetos	-	Greek Mythology
Bongani	-	Southern African, Zulu
Maristela	-	Spanish, Portuguese
Haruna	hah-ṙoo-nah	Japanese