be stuck on

be stuck on

1. To be very smitten with someone or captivated by something. Oh, he's been stuck on you for years, so I think he'd be thrilled to go with you to the dance!
2. Fixated or focused on something, such as an idea, feeling, or belief. A: "Why is Adam mad at you?" B: "I think he's stuck on the fact that I made the track team and he didn't." Why are you so stuck on the comments some random person on the internet made about your video?
3. Unable to make progress past a certain point or level due to something that one is confused by, unable to do, etc. I'm stuck on this part of the instructions—can you explain it to me again? If you get stuck for too long on any one question, just skip it and move on to the next.
See also: on, stuck

be stuck on (someone or something)

1. To be smitten with someone. Oh, he's been stuck on you for years—of course he'll be your date to the dance!
2. To be fixated or focused on something, such as an idea, feeling, or belief. A: "Why is Adam mad at you?" B: "I think he's stuck on the fact that I made the track team and he didn't."
3. To be unable to make progress past a certain point or level due to something that one is confused by, unable to do, etc. I'm stuck on this part of the instructions—can you explain it to me again? If you're stuck on any one question, just skip it and move on.
See also: on, stuck
Farlex Dictionary of Idioms.

stuck on, be

Be very fond of, as in She's been stuck on him ever since first grade. [Slang; late 1800s]
See also: stuck
The American Heritage® Dictionary of Idioms by Christine Ammer.

be stuck on

Informal
To be very fond of.
See also: on, stuck
American Heritage® Dictionary of the English Language, Fifth Edition.
See also:
  • be stuck on (someone or something)
  • stuck on, be
  • stuck on (someone or something)
  • stuck on someone or something
  • high on
  • high on (something)
  • high on something
  • be taken with (someone or something)
  • taken with, be
  • not take your eyes off somebody/something