fall for

(비격식) (수동태로는 안 씀) ~에 속아 넘어가다
I'm surprised you fell for that trick.
네가 그 속임수에 속아 넘어가다니 놀라워.

to be attracted to somebody/something; to fall in love with somebody/something
He fell for a young student.

to be tricked into believing something is true when it is not
You didn't fall for that old trick, did you?

fall for somebody
~에게 홀딱 반하다[빠지다]

They fell for each other instantly.
그들은 즉시 서로에게 홀딱 빠졌다.

fall for a scheme
휼계에 넘어가다

fall for somebody’s bluff
엄포에 속다(=be deceived by a false threat).