insy(redirected from an insy)
A navel (bellybutton) that recedes inward (as opposed to protruding outward). Ugh, you're lucky to have a cute little insy—I'm always self-conscious of bearing my midriff because of my outie.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
insyand innie (ˈɪnzi)
n. a navel that recedes and does not protrude. (Compare this with outsy.) Is yours an insy or an outsy?
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.