1. The act or instance of leaving one's own bed to go sleep beside one's child, or vice-versa, because the child needs one's company to sleep soundly. A reference to the children's game "musical chairs." We fell into some bad habits when our daughter was about a year old, and we've been playing musical beds with her almost every night for the past three years as a result. Any parent out there knows the sleepy resignation of having to play musical beds at 4 o'clock in the morning.
2. The act or instance of having sex with multiple partners, especially in a short space of time. A reference to the children's game "musical chairs." It seemed like everyone in the dorm rooms was playing musical beds—promiscuity and experimentation was just the name of the game in college.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
n. acts of sexual promiscuity; sleeping with many people. (From the name of the game musical chairs.) Mary has been playing musical beds for about a year.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.