outsy

outsy

1. A navel (bellybutton) that protrudes outward. They said my outsy should disappear by the time I turned five, but I've still got it nearly 20 years later.
2. slang Out of here; leaving. That's it, I'm not waiting any longer—I'm outsy! No way, this is too gross for me! I'm outsy.
Farlex Dictionary of Idioms.

outsy

and outy (ˈɑʊtsi and ˈɑʊtɪ)
n. a navel that protrudes. (Compare this with insy.) Is yours an insy or an outsy?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • outtie
  • outy
  • outie
  • inside out
  • proud below the navel
  • navel-contemplation
  • contemplation
  • navel-gazing
  • gaze at (one's) navel
  • gaze
References in periodicals archive
By what other mechanism can we be proud of such a purely physical feature as skin color (race), over which we have no control, and be emotionally indifferent to such other physical features as our elbow, or whether or not our naval is an "insy" or "outsy"?
Ethnicity in the service of motivation