こぼす
こぼす · kobosu · JLPT N3 · verb-godan
to spill
🥛💧 kobosu sounds like go, boss! and the boss spills his coffee
こぼす is transitive: you spill something, as in 水をこぼす, to spill water. Its intransitive partner is こぼれる, to be spilled or overflow. The same pattern shows up in 落とす and 落ちる, to drop something and to fall.