Comes from the 1940's song by Fats Waller, "All That Meat and No
Potatoes." The phrase refers to a physically attractive woman with an otherwise nice figure "all that meat", but who is proportionally
small breasted, "and no
potatoes".
All that meat and no
potatoes
Just
ain't right, like green tomatoes.
Here I'm waiting, palpitatin',
For all meat and no
potatoes.