(写作或演讲中的)破格修辞法,破格用语 the freedom to change facts, the normal rules of language, etc. in a special piece of writing or speech in order to achieve a particular effect
N-UNCOUNT (作家、电影导演等的)破格,不拘一格 If someone such as a writer or film director uses poetic licence, they break the usual rules of language or style, or they change the facts, in order to create a particular effect.
All that stuff about catching giant fish was just a bit of poetic licence. 有关捕捉大鱼的所有内容只是一点破格罢了。