✔ 最佳答案
It's a particular turn of phrase, neologism, or thematic sentence that a speaker frequently uses for its high oratorical value. It's different from a catch phrase in that a catch phrase is designed, most likely by a writer, rather than composed by the speaker. For example, "D'oh!" is Homer Simpson's catch phrase, but "If the glove doesn't fit, you must acquit" became a Johnnie Cochran pet phrase during the O.J. trial.