A cow who is a ninja and stands on motherfuckers who try to mess with him. A cow ninja is also a fast cow who knows how to handle his weapons and use his speed to propell him/herself onto walls, basically running on walls.
by Yoer October 27, 2007
An asshole and bastard. Many have tried to combine the two and create the "Basshole", but that is simply silly.
by Ninja Cow June 20, 2004