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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.