What does "She's apples" mean?
It means everything is fine or going well. The she refers loosely to the situation, rather than necessarily to a woman or girl.
The saying in a sentence
The saying
She's apples
Example
Don't stress, she's apples.
When you use it
Use it to reassure a mate that a small problem is sorted or that everything is going to plan.
When you do not
Avoid it when someone is asking for a detailed update or raising a serious concern. Explain what is happening instead.