Longman Dictionary of Contemporary English
teeny weeny
adjective
EXAMPLES FROM CORPUS
▪ I even made her a teeny weeny paper chain though Mrs Peters had to help me because I just kept tearing it.
Wiktionary
teeny weeny
a. (context idiomatic often childish or humorous English) (alternative spelling of teeny-weeny English)
Usage examples of "teeny weeny".
He left with a teeny weeny little habit and some not so teeny little bruises.
So they made a few little teeny weeny changes to the program, for example commenting out some lines.