waitress mom
n. A woman who is married, has children, works in a low-income job, and has little formal education.
Examples
1998
Forget the suburban, well-educated soccer moms of 1996. 'It's actually the waitress moms who will decide this election,' Democratic pollster Celinda Lake told a forum on women and turnout. These women like the Democrats' views on education, health care and Social Security, but polls show a majority of them are unlikely to vote.
—Jill Lawrence, “Voters in some states can begin making their choices known today,” USA Today, October 14, 1998
1996 (earliest)
There are more than twice as many Waitress Moms as Soccer Moms," said Ms. Lake, referring to blue-collar working women without college educations supporting children. "Right now they are voting Democratic, but many of them are undecided. . . . If you want to know the truth, it is now the Waitress Moms who are critical.
—Neil MacFarquhar, “What's a Soccer Mom Anyway?,” The New York Times, October 20, 1996