Popiće
Popiće is a Serbo-Croatian verb form. Specifically, it is the third-person singular future tense form of the verb popiti. The verb popiti means "to drink up" or "to finish drinking" (something). Therefore, popiće translates to "he/she/it will drink up" or "he/she/it will finish drinking".
The verb popiti is a perfective verb, meaning it describes a completed action. The future tense popiće therefore describes a future action of completely drinking something. The subject of the verb, implied by the form, is a singular entity. The gender is not specified by the verb itself.