The Rice University Neologisms Database

A De Niroesquism is a word referring to phrases that remind a person of something Robert De Niro would do or say. It would be used when a person does or says something that is reminiscent of Robert De Niro. It is the addition of the two derivational morphemes, ‘-esque’ and ‘–ism’ to De Niro. The suffix ‘-esque’ is an adjective forming suffix which refers to something that is like something else and the suffix ‘-ism’ is a noun forming suffix. There was not one word to qualify phrases or actions that Robert De Niro would say, so a new word had to be created to express this idea in one word.