|1.||That's what she did|
A replica of That's what she said, but if a girl does it.
Girl: I used a banana as a toy.
Me: That's what she did
|2.||that's what she did|
something one says when somebody does something physically that can be interpreted as sexual.
This phrase is very much like the phrase "that's what she said" but said when someone does something.
**Girl bends over to pick up pencil**
"That's what she did!"