1.VerbTo spend time thinking about oneself or one's own interests, especially to the exclusion of others.
"People keep coming to me for advice that they go on to ignore, so I've decided to stop wasting effort on ingrates and instead dedicate more time to contemplating my navel and my many other attractive features and admirable qualities."
2.VerbUsed other than figuratively or idiomatically: see contemplate, navel.