From Longman Dictionary of Contemporary Englishlittle/young oneslittle/young onesspokenCHILD used by some people to mean ‘children’, especially young children She’s got four little ones. → one
Examples from the Corpus
little/young ones• Bowel frequency, for example, was little greater in the older patients than in the younger ones.• Mr Preston had recently cleared out his old trees and planted new young ones.• Happy shall he be who takes your little ones and dashes them against the rock!• Older respondents tend to state their replies in honorifics; younger ones are less reverential.• They were thinking of wives and little ones far away, and wondering if they would ever see them again.• Helping with academic or social tasks, the older children develop a sense of responsibility for the younger ones in the building.• As Jack goes on hunting, the little ones look at him as an expert.• The older kids were at school and two of the women had taken the younger ones to the park. 