Wikipedia
A rent party (sometimes called a house party) is a social occasion where tenants hire a musician or band to play and pass the hat to raise money to pay their rent, originating in Harlem during the 1920s. The rent party played a major role in the development of jazz and blues music. The Oxford English Dictionary states that the term skiffle means "rent party", indicating the informality of the occasion. Thus, the word became associated with informal music. However, many notable jazz musicians are associated with rent parties, including pianists Speckled Red, James P. Johnson, Willie "the Lion" Smith, and Fats Waller, although rent parties also featured bands as well. The OED also gives boogie as a term for rent party.
Rent parties were often the location of so-called cutting contests, which involves jazz pianists taking turns at the piano, attempting to out-do each other.
The band Steely Dan's 2009 tour of the United States was named the "Rent Party 09" tour.
Usage examples of "rent party".
He lived off the generosity of others, throwing a well-attended rent party once a month so he could pay for the curtained-off illegal cellar cubicle he called home.