 dual income no kids dink is a slang phrase for a household in which there are two people earning incomes and no children couples living in a dink household frequently have more disposable income because they do not have the added expenses that come with children they also often spend less per person on housing than singles because of their ability to share kitchens bathrooms and living rooms 
for related insight contrast dinks with dewks a living arrangement in which both partners work and are raising children 