Nazi bar as defined by Wiktionary:

(Internet slang) A space in which bigots or extremists have come to dominate due to a lack of moderation or by moderators wishing to remain neutral or avoid conflict.

Justin M. Keyes (justinmk) on the neovim.github.io project for an issue¹ asking to remove a quote by noted racist DHH:

You are trying to draw a response so that we can have a debate. Sorry, I'm not going to spend time on this. And that includes whatever demands you're making of me.

And

You all have embarrassed and shamed yourselves.

Most of you aren't Neovim users, but a drive-by mob, swirling from one mindless vomit-party to another, like the pacific garbage patch.

A PR to remove the quote was eventually merged.

1. Archived copy: https://jacroe.com/tools/files/neovim-neovim.github.io_issue-501.pdf ↩