The title itself explains the joke, Masaev plus agro equals Agrosaev, a portmanteau that became the whole identity of the clip. The stretched aoaoaoa vocalization in the original upload helped it circulate as a niche Russian-language meme sound, shared on soundboards for its sheer noise and absurdity. It has no clear movie or show source, which is typical for user-made meme audio that spreads because the delivery is memorable, not because of a famous scene behind it.