シュッシュッ shusshu' 1. choo-choo; chug-chug2. brush-brush; scrub-scrub Adverb #24230 Open Menu Add to collection... Open
シュッシュッポッポ shusshu' poppo 1. chuff-chuff (sound of a steam engine); choo-choo Adverb #179615 Open Menu Add to collection... Open