Wiktionary
n. A tavern or similar nightclub whose primary clientele is homosexuals.
Wikipedia
A gay bar is a drinking establishment that caters to an exclusively or predominantly lesbian, gay, bisexual, and transgender ( LGBT) clientele; the term gay is used as a broadly inclusive concept for LGBT and queer communities.
Gay bars once served as the centre of gay culture and were one of the few places people with same-sex orientations and gender-variant identities could openly socialize. Other names used to describe these establishments include boy bar, girl bar, gay club, gay pub, queer bar, lesbian bar, drag bar, and dyke bar, depending on the niche communities that they served.
With the advent of the Internet and an increasing acceptance of LGBT people across the Western world, the relevance of gay bars in the LGBT community has somewhat diminished. In areas without a gay bar, certain establishments may hold a gay night.
"Gay Bar" is a song by American rock band Electric Six, and written by their lead singer, Tyler Spencer (whose band pseudonym is Dick Valentine). It was released in June 2003 as the second single off their debut album, Fire released in 2003. While both the song and music video received significant airplay, various lyrics mentioning war were edited due to their possibly offensive nature since the song made its air debut at the start of the Iraq War.
Usage examples of "gay bar".
It was a gay bar, but there weren't enough gay men in Trenton to make a go of it.
Danny agreed, and they met at a gay bar on Santa Monica Boulevard.
WHEN you hit a gay bar in the middle of a weekday afternoon you wonder why they don't call it something else.
This was no kind of place to be caught reading in: a macho gay bar in a five-fathom basement somewhere beneath the charred East Twenties.
I was very depressed while he was gone, and I had a longer than usual affair with a girl from the Dominican Republic whom I picked up at the gay bar.
I called Madison, and it was just an ordinary bar, not a gay bar or anything.
That was a notorious gay bar, and his secret would sure as hell be out if he'd been seen going in there.
He followed her into her office waving the photograph of Raeburn in the gay bar.
On Ninth Avenue I had a glass of ginger ale at a gay bar called Kid Gloves.
He'd been seen in the valley at a gay bar called Jack's, so we went there: nothing.
I suppose you might say this is the most elegant gay bar in New York.
Glaven who was spotted in Toronto in a gay bar over the weekend, holding hands with another man, kissing him on the lips.