girl's bar; small bar with female staff
A type of small bar where all staff are women, often with a counter and casual atmosphere. Similar to a shot bar but with female bartenders/servers. Wasei-eigo; not a standard English term.
wasei-eigo (Japanese-coined English), from girl's bar
See also: ショットバー
I often go to a girl's bar with friends on weekends.
That girl's bar has friendly staff and a nice atmosphere.