turn someone on
(人の)スイッチを入れる→わくわくさせる、ムラムラさせる
https://gyazo.com/9fcb7175de50e94750f30f5f5d391b9f
source: Illya Switch On! [Fate/Kaleid Liner Prisma Illya] : animegifs
turn someone on
informal excite or stimulate the interest of someone, especially sexually.
⦅くだけて⦆ A〈人〉をわくわくさせる; (特に性的に)興奮させる, むらむらさせる(↔ turn someone off)
#phrasal_verb