Painting her face 

In the same vein as painting her nails -- describes the 'occupation' of a woman that only entails sitting at home and doing nothing while her partner does all the breadwinning.

The term stems from women applying make-up as part of their apparent vanity pastime, hence the 'painting' term.

"He's at the store, working 24/7 while she spends her time painting her face."

Painting her face by Devil Jones March 4, 2008