bottom line

[Itasan]

bottom line
1. The line in a financial statement that shows net income or loss.
2. The final result or statement.
3. The main or essential point.
Is there another meaning?
Thank you.

[Tdol]

I have heard it is used for a point beyond which people will not go, though this isn't common.

[Itasan]

Thank you very much.
An American friend of mine wrote me this joke.
"What is your bottom line?" "I think it is my panty hose!"
I wonder if this use of 'bottom line' is common.
'the line shown on the skirt when it is too tight'
Itasan