Wiktionary
alt. 1 A place where clients can pay for a massage. 2 A place that offers a happy ending after the massage. n. 1 A place where clients can pay for a massage. 2 A place that offers a happy ending after the massage.
WordNet
n. a place where illicit sex is available under the guise of therapeutic massage
a business establishment that offers therapeutic massage
Wikipedia
A massage parlor (American English), or massage parlour (British English), is a place where massage services are provided. Some massage parlors are fronts for prostitution and the term "massage parlor" has also become a euphemism for a brothel, to the annoyance of professional masseurs.
Usage examples of "massage parlor".
So the massage parlor drawing ended up in the office of a weather forecaster.
Charlie dressed and left the Happy Relax Good Time Oriental Massage Parlor, which he had walked by a thousand times during his life, always wondering what was behind the red door with brown paper taped over the window.
Relieved, he had dressed hurriedly and had scurried out of the massage parlor, blushing, embarrassed, but thankful that his secret had not been uncovered.
I'd only just gotten up to the massage parlor, and now you've ruined it.
The most recent paycheck stub was from The Hard Corps, a massage parlor with a cut-rate reputation.
By now we were down to a massage parlor so sleazy that most junkies wouldn't go there to cop.