finirla
Finirla is an Italian phrasal verb formed from the verb finire (to finish) with a clitic object pronoun la, meaning it finishes or ends something feminine. The combination is used both to indicate finishing a task or object and, more commonly in colloquial speech, to urge someone to stop doing something. The pronoun la refers to a feminine singular noun or to a feminine concept previously mentioned, such as la storia (the story) or la situazione (the situation).
The basic sense is “to finish it” or “to end it.” For example, Devo finirla subito means
La is the feminine singular direct object pronoun; when the object is masculine or plural, different pronouns