注ぎ込む (pour into, devote)

The compound verb 注ぎ込む, fusing 注ぐ ('pour') + 込む (intensifier 'in/into'), meaning 'to pour into, devote, channel completely.' Used for liquids literally and for emotional/physical investment metaphorically — 全精力を注ぎ込む ('pour all one's energy into').