You had everyone else fallin' for it! Not Zenigata!

（世間は騙せたかもしれんが、この銭形は別だ！）
　ルパン三世「ルパン対複製人間」より。ルパンが死んだ、という報告を信じなかった銭形は、ルパンの墓を確かめに行く。その先で、生きているルパンと遭遇。まんまと逃げられるものの、ルパンが生きていたことに嬉しそうに叫ぶ銭形警部のひとこと。

• fall for somethingで「〜を簡単に信じる」（to believe something without reservation　※without reservation：率直に／to believe something that is not true）という意味に。ここではルパンが死んだことをみんなに信じさせた、という流れ。
  • Surely, you don't expect me to fall for that!
  • She fell for the excuse I gave her about getting stuck in traffic.
  • I stupidly fell for his story until someone told me he was already married.
• ちなみにfall for someone と、forの後が人になると、「恋に落ちる」という意味になる。（to fall in love with someone／to find someone attractive and begin to love them）
  • I fell for her in a big way. She's gorgeous!
  • Ted fell for Alice and they decided to get married.
  • They met at a friend's house and fell for each other immediately.