A gimmick is an angle that works for you to keep you from working too hard for yourself. Simple.
7 seconds sound clip from the The Strange Love of Martha Ivers movie soundboard.
You can hear this line at 01:22:02.368 in the Blu-ray version of the movie.
Quote context
[...]
- Martha, did your aunt leave you everything?
- I'll never forget the way she looked that night standing in the doorway, leaning on her cane.
- I don't want to talk about her.
- You look different than you did this morning. Clean and fresh.
- I think I've got what I want. I think I've got a gimmick.
- A gimmick is an angle that works for you to keep you from working too hard for yourself. Simple.
- Specifically, what is your angle?
- Half.
- My father used to work here as a mill hand.
- So did my father, when he was sober.
[...]