シュッシュッポッポ Also written シュッシュッポッポッ, しゅっしゅっぽっぽ, しゅっしゅっぽっぽっ Meanings Adverb chuff-chuff (sound of a steam engine); choo-choo; chug-chug; puff-puff See also: ぽっぽ. Word lists Onomatopoeia Jinuma: Japanese Dictionary · Word lists