ぐちゅぐちゅぺー

expression

swish and spit (toothpaste foam)

Onomatopoeic phrase mimicking the sound of swishing water in the mouth and then spitting it out, typically after brushing teeth. Used in casual, often child-directed or playful contexts.

• 歯は磨みがきのあとは、ぐちゅぐちゅぺーしてね。

  After brushing your teeth, swish and spit, okay?

• 子こどもに「ぐちゅぐちゅぺーしよう」と言いってうがいを教おしえた。

  I taught my child to gargle by saying, 'Let's do guchuguchupē.'