круто
Cool / impressive
RUSSIANCONSTRUCT YOUR LANGUAGE
Small steps.
Big changes.
Understand slang and swearing, including when a word changes the mood of a conversation.
These lessons explain real usage and profanity. Register depends on the speaker, relationship, and setting. Recognition is useful even when you choose a gentler expression yourself.
Cool / impressive
Hang out
Be slow / hesitate
Be stunned / wow
Darn / oh man
Damn / devil
Nonsense / rubbish / a trivial thing
Hell / damn; literally horseradish
Блин → Ой. Фигня → Ерунда. Круто → Отлично. A useful skill is choosing the register that fits the person you are speaking to.