ラストボス LinksSentence search for ラストボスSentence search for ラスト・ボスEdit in JMdict Noun1. final bossVideo games, Wasei, word made in Japan, See also ボス, See also ラスボス, From English “last boss”. Wasei (word made in Japan)Other formsラスト・ボス Discussions Log in to talk about this word.