a person who is a totally clueless jerk. A person who lives their own world and defines everything by how it effects them.
A neenerhead thinks that he/she is the smartest person on earth.
by On the Hook in Phila. July 20, 2010
1 more definition
1) A more emphasized version of Neener.
You are a neenerhead!!!
by UberFishCakes March 08, 2004