neoterism \ nee-OT-uh-riz-uhm \ noun 1. An innovation in language, as a new word, term, or expression. 2. The use of new words, terms, or expressions. In dubbing her latest "catchphrase" a neoterism, she was actually making a complete ass of herself ... The quotation she claimed to have invented was, in fact, a repetition of phrase coined a mere 6 years prior. === Please let me know if my overzealous use of neoterisms metastasizes into neoterrorism.