noun
- a belly button that is indented or recessed inward rather than protruding outward
Usage: informal; often used in contrast with 'outie'
Examples
- She has an innie, while her brother has an outie.
- Most people are born with either an innie or an outie.
- He joked that his innie made it hard to keep clean.
- The doctor explained that whether you have an innie or outie depends on how the umbilical cord heals.