A person who is a bit kookie and whacky or not quite firing on all synapses. Is not meant to be derogatory in nature but as an affectionate observation.
"Has anyone seen my medulla oblongata lying? I can't find it since I put it in the tumble dryer to dry out"
"Nutnut"
"Nutnut"
by Tania K October 02, 2005
A really flamboyant sandle or other type of footwear that only a nutnut would go out in public wearing.
by LeonB September 06, 2009