What is irish twins meaning?

Irish twins are siblings who are born within a year of each other. The term "Irish twins" has an uncertain origin, but it may refer to the stereotypical family size in Ireland, as well as the country's strong Catholic faith. The term can be seen as a derogatory label because it implies that the children were conceived immediately after the birth of the first child, and may suggest that the parents were not practicing responsible family planning. However, some people embrace the term as a symbol of affection for their close sibling relationship and shared experiences. The term can also be used to describe siblings who are close in age, regardless of whether they are born within a year or not.