@Karpivna Fasa comes from Hungarian. If you want something more Slavic, then there’s a universal word for all Slovaks: popiči /po-pee-chee/.
It means the same as fasa, but be careful, because it’s considered more pejorative.
It’s derived from word piča, which means pussy.
I don’t know why we create words that represent something positive out of words that are used for sex organs.