house party

or houseparty

noun

1. the entertainment of guests for one or more nights at one's home, a fraternity or sorority house, etc.
2. the guests at such an affair or party:

   The house party goes sailing today.

house party

noun

1. a party, usually in a country house, at which guests are invited to stay for several days
2. the guests who are invited

Word History and Origins

Origin of house party¹

First recorded in 1875–80

Example Sentences

As the clock ticks closer to the 8 p.m. curtain time, the lobby more clearly resembles a house party — a chatty, mingling crowd, flashing colorful lights and flowing red wine.

From Los Angeles Times

Inspired, Stamper snuck into her first house party at the age of 14, and found her true calling.

From BBC

He had gone out for drinks and then on to a house party with people from his course, which he left shortly before 03:00 GMT.

From BBC

He was stabbed in the neck at a house party last summer – another life lost at 16.

From BBC

Prosecutors say she dropped him off at a house party hosted by a fellow officer in Canton, Massachusetts, after a night of drinking, struck him with her SUV and then drove away.

From Seattle Times