From Longman Dictionary of Contemporary Englishteeny weenytee‧ny wee‧ny /ˌtiːni ˈwiːni◂/ (also teensy weensy /ˌtiːnzi ˈwiːnzi◂/) adjective informal SMALLa word meaning very small – used especially by children or when speaking to children
Examples from the Corpus
teeny weeny• I even made her a teeny weeny paper chain though Mrs Peters had to help me because I just kept tearing it.Origin teeny weeny (1800-1900) weeny “very small” ((1700-1800)) from → WEE1 + tiny. teensy weensy (1900-2000) Probably from teeny weeny 