ichidan verb, intransitive verb
Describes liquid boiling up and spilling over the edge of a pot or container. Intransitive.
鍋のスープが吹きこぼれて、コンロが汚れた。
The soup in the pot boiled over and made a mess on the stove.
強火にすると吹きこぼれやすいので、中火
It tends to boil over on high heat, so please simmer on medium heat.