zako (phrase)
Zaa~ko is a phrase which originates from Yuzu-Soft's game Tenshi Souzou Re-boot!. One of the main heroines, Tanikaze Amane teases her brother, a former demon lord, who lost his power by calling him a zako. It can be translated as a "small fry" or "prey", something really small and weak, like level 1 monsters. "Loser" is a close English equivalent.
