y-bitsy UK and US [adjective] [before noun], [US and ANZ] also itty-bitty [adjective] [before noun] [humorous] - extremely smallThe baby had itsy-bitsy little hands and feet.It's the itsy-bitsiest hat I've ever seen.
ITS
Meaning of ITS in English
Cambridge English vocab. Кембриджский английский словарь. 2012