宵っぱり よいっぱり Also written 宵っ張り Meanings Noun night owl; nighthawk; late bird する verb to stay up late; to keep late hours Kanji 宵 evening. Read as よい. Example sentences 私もそうだが、IT業界には宵っ張りの人が多いに違いない。I'm one too, and I'm sure there are lots of night-owls in the IT world. Jinuma: Japanese Dictionary · Word lists