Meaning of Catholic twins | Babel Free

Definitions

1. Siblings born within twelve months of each other.
   plural, plural-normally, slang
2. Used other than figuratively or idiomatically: see Catholic, twin.
   plural, plural-normally

Examples

““Aunt Sissy!” a young voice screeched, then Sissy was besieged by five kids who looked barely a year apart. What his mom would call Catholic Twins.”

CEFR level