who coined the term thagomizer?jjjjjjjjjjjjjj
Top definition. Thagomizer. Term coined by Gary Larson that is most commonly used to describe the arrangement of spikes at the tip of a stegosaur's tail. can be used to describe any such spike arrangement. Paleolithic teacher: This end is called the 'Thagomizer'...after the late Thag Simmons..