Ever (pronounced "Eva" with emphasis on "e") is a fashionable English word, translated into Russian meaning "ever". The antitnum of this word is "never", that is, "never". Example: This is my favorite movie ever - "this is my favorite movie (of all I've ever seen)."
The Yabloko Party, apparently having grown fat on sour apples, decided to go to the 2016 elections under the slogan "The most daring campaign ever", that is, "for the whole history of mankind".
It must be acknowledged that the PR specialists of Yabloko here have been overdone with borrowing, and as a result they have got the most fake pre-election slogan ever.
Ever is in the list: Slang