「一逼」とは？

程度副词，表示非常、极度。

ENAn adverb of degree, meaning 'very' or 'extremely'.

南京话俚语 作为程度副词用于形容词后，做补语，来表达该形容词的程度极高。 多用于句尾，增强语势！

ENNanjing dialect slang. As an adverb of degree used after an adjective as a complement to express a very high degree of the adjective. Mostly used at the end of a sentence to enhance the tone!