turn on
https://gyazo.com/0f92194e437f364b98ef11689854dec8
source: [僕は友達が少ないの柏崎星奈が三日月夜空を卑怯にも不意打ちするGIF画像｜無料GIF画像検索 GIFMAGAZINE 71655]
turn on
1. suddenly attack (someone) physically or verbally:
A〈人〉に急に襲いかかる, A〈人〉を非難する, 責める (!受け身にしない)
e.g. he turned on her with cold savagery.
2. have as the main topic or point of interest:
｟英･くだけて｠ 〈思考･会話が〉Aを中心に行われる (!受け身にしない) .
e.g. for most businessmen, the central questions will turn on taxation.
#phrasal_verb