under-nips 

Nipples that are awkwardly situation on the breast of either a male or female so that they point down towards the floor.

Vera has some serious under-nips.

under-nips by Samski June 19, 2006

underhipster 

Someone who doesn't wear underwear.

Sue is an underhipster because she hates panty lines.

underhipster by Skylar01 November 23, 2014

undernipple 

The masculine equivalent of underboob.

I mean that guys top in so short he's got all his undernipple out. He might as well be topless.

undernipple by Bdiazraf June 1, 2015