0 a musician who performs alone, usually outside, carrying and playing several instruments at the same time:
figurative The organization seems to have become a one-man band with just one person making all the decisions.
1 a company, organization, etc. in which all the work is done by one person:
She started the company in 2003, and at first it was a one-man band.
NYA ORD
European
May 10, 2021
DAGENS ORD
Shimmer
one-man band