Barbershop is a style of singing where a small group of people, usually men, sing in close harmony and without any musical instruments accompanying them.
...a barbershop quartet.
2. barber shop
barbershop in British English
(ˈbɑːbəˌʃɒp)
noun
1. mainly US
the premises of a barber
2. (modifier)
denoting or characterized by a type of close four-part harmony for male voices, popular in romantic and sentimental songs of the 1920s and 1930s
a barbershop quartet
barbershop in American English
(ˈbɑrbərˌʃɑp)
US
noun
1.
a barber's place of business
adjective
2. Informal
designating, or characterized by, the close harmony of usually male voices, esp. in sentimentalsongs
a barbershop quartet
Examples of 'barbershop' in a sentence
barbershop
Before the two of them left for the barbershop, Myrna Louise took her son aside and talked to him, telling him how he should behave.