fall asleep at the wheel
To fail to attend to one's responsibilities or duties; to be inattentive to that which is important or for which one is responsible. Johnson was supposed to make sure the paperwork went through before the deadline, but it looks like he fell asleep at the wheel. Our goalkeeper is such a nincompoop. We would have won that match if he hadn't fallen asleep at the wheel!
fall asleep at the switch
To fail to attend to one's responsibilities or duties; to be inattentive to that which is important or for which one is responsible. Johnson was supposed to make sure the paperwork went through before the deadline, but it looks like he fell asleep at the switch. Our goalkeeper is such a nincompoop. We would have won that match if he hadn't fallen asleep at the switch!
fall under the spell of (someone)
To come under the influence or control of someone because one finds him or her fascinating, enchanting, or seductive. Our son has never acted out like this before. I think he must have fallen under the spell of that new friend of his. Such was the magnitude of her beauty that countless men have fallen under the spell of the duchess.
fallen angel
1. An angel who has rebelled against God and has been subsequently cast out of heaven. The Bible describes Lucifer as having become a fallen angel after he desired to become God rather than be a servant of God.
2. In finance, a stock or bond that has drastically declined in value. Try to avoid investing in fallen angels—they may have been highly priced once, but they will never return to their original value.
3. A company or organization that was previously successful but is currently failing. The high school's debate team was this year's fallen angel, losing all of their competitions after being dominant last year.
fallen idol
Someone who is no longer respected or admired. He was so popular and loved when he was a young actor, but now that he is approaching middle age, he's a fallen idol. Nobody even talks about him anymore.
fallen woman
dated A woman who has lost respect because of engaging in premarital sex. Many cultures still consider females who engage in sex before they are married as fallen women and advise men against becoming involved with them.
a fallen angel
a company or sports team that was successful in the past but is not successful now (usually plural) Derby County were this season's fallen angels, being sent into the Second Division after losing all their matches.
a fallen idol
a person who was admired in the past but who is not admired any more Highly respected during his lifetime, he became a fallen idol after his death when his research was found to be full of errors.
a fallen woman
(old-fashioned) a woman who is not respected any more because she had sex without being married Many fallen women were forced to work as prostitutes, some were shut away in asylums.