Lesson on July 9. Spoken(Conversational) English. Bad English. English Slang.

Spoken( Conversational)  English

Bad English

to swear-матюкатися. to insult=to offend=ображати 

English (
American ) Slang

English( British) Slang.

https://www.fluentu.com/blog/english/english-uk-slang/