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
Hartwig	HAHRT-vig (German)	German, Ancient Germanic
Xandinho	-	Portuguese
Basia (1)	BAH-shah	Polish
Gracia	['greiʃiə]
ŘEhoŘ	-	Czech
Barra	-	Irish