Wiktionary
barbershop quartets
n. (barbershop quartet English)
Usage examples of "barbershop quartets".
This folkloric invention approaches saintliness when the discussion turns to rural, small town America with its treacly images of barbershop quartets, Farmer Brown on his tractor and the Main Street parade after the strawberry harvest.
This is logical, straightforward and practical, and only disapproved of by barbershop quartets.