What is Irish Twins?
1.
Siblings born within 12 months of each other.
My sister and I were born 11 months apart. We were known in our family as Irish twins.
2.
Children, born in succession within one year
They were like rabbits. Now their Irish twins are six and seven.
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3.
two people born less than 12 months apart (from the stereotype that Irish Catholics have many children)
They ended up with Irish twins and shortly after, decided they would be better off with a larger house.
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4.
Two siblings who are not twins but born in the same year, usually nine months apart.
Are Andie and Jack McPhee Irish twins?
5.
Siblings who were born 10 months apart.
Patrick and Noreen, born 10 months apart, are Irish Twins.
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