The Sound of Being Completely Soaked
ビショビショ (bishobisho) is the word for being thoroughly, unmistakably drenched. It’s a gitaigo (擬態語) — describing a state rather than a sound — and it paints a vivid picture: clothes clinging to skin, hair dripping, water pooling in your shoes. There’s no ambiguity with ビショビショ; it means soaked through and through.
Degrees of Wetness
Japanese has a useful scale for wetness. しっとり (shittori) is lightly moist or dewy. じっとり (jittori) is unpleasantly damp, like sticky humidity. ビショビショ is the extreme end — completely drenched with no dry spot left. The most common pattern is 「ビショビショになる」 (bishobisho ni naru, “to get soaking wet”), and it applies to people, clothes, floors, or anything else that can be thoroughly soaked.
Fun Fact
ビショビショ is closely related to びしょ濡れ (bisho nure, “soaking wet”), which uses the same びしょ root paired with 濡れ (nure, “wet”). The exact origin of びしょ is uncertain — like many onomatopoeia, it likely arose from the feel of the sound itself rather than from a specific word. Either way, ビショビショ is one of those satisfying cases where the sound just feels wet.
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In Anime
Weathering with You (天気の子)
The constant rain in Tokyo leaves characters ビショビショ throughout the film — walking through downpours, clothes clinging and dripping. The wetness becomes a visual metaphor for the world being out of balance, making ビショビショ more than just a physical state.
My Neighbor Totoro (となりのトトロ)
The famous bus stop scene — Satsuki and Mei waiting in the rain, getting progressively more soaked — is a ビショビショ moment that leads to one of the most iconic encounters in anime history. Their drenched state makes Totoro's arrival feel all the more magical.