Noticed lots of Russian-learners tend to ignore regional specific words, though some of them are really lovely. Here's a top of my favourites from where I'm from. Choose your mood for today you all.
Полу́торка [polutorka] - a one-bedroom flat. Basic and affordable
Угомони́ться [ugomonitsya] -to calm down. We typically say this to a naughty kid. My Granny loves this word
Вехо́тка [vekhotka] - a sponge. Cringy, moldy, laying by a sink
Синя́вка [sinyavka] - a female alcoholic, usually anti-social. No comment — just love it.