A dive bar is a type of bar or pub. Dive bars generally have a relaxed and informal atmosphere_they are often referred to by local residents as "neighborhood bars," where people in the neighborhood gather to drink and socialize. Individual bars may be considered to be disreputable, sinister, or even a detriment to the community: _A plot to entrap young women for the dives of Northern Wisconsin has been discovered._ _The dives themselves are nuisances, per se, and that is why they have to pay such high license prices._ The Shorter Oxford English Dictionary indicates that, in the United States in the 1880s, the term referred to an illegal drinking den or other place of ill repute, especially one located in a basement. However, this usage has since become obsolete. Some people attribute the term to the practice of patrons diving under tables when trouble broke out, particularly gunplay.
Contributions by Wahrmund, Ruby miette, and Andycjp.