It's an expression used as a callout/strategy planning in CS:GO. It's commonly used in de_dust 2, a map from the aforementioned game. B in "rush b" is a bomb plant spot, an objective in the game. It's a phrase in it of itself.
Random CS:GO russian player: "Rush B Cyka Blyat"
By Aloxo Black
Rush B is a common term used in the game 'CS:GO' to direct your teammates into defeat and mental depression; the 'Cyka blyat' which followed is mainly used in Russia as greetings and pleadings.
Votka: Rush B Rush B Ben: Ok, calm down my guy... Votka: Rush B Cyka blyat!
By unknown unpopular comedian
A common ideology that Russian CS:GO players tend to refer to like it was their actual only way to win a CS:GO match on the Terrorist side. These types of players never go on A site, (the other site in CS:GO) and act like B is the only option, even though they always go there. This ideology of theirs works best on one particular map in CS:GO, Dust 2.
Vasily: RUSH B CYKA BLYAT!!! Person 1: But why don't we go on A site for once? Vasily: YOU DARE UNDERESTIMATE MY STRATEGY?!?!?! Person 1: I was just suggesting we went A site for once, we only went B site the whole match... Vasily: YOU ARE SPEAKING NON-SENSE GIVE ME THE BOMB NOW!!!! DO YOU WANT TO LOSE THIS GAME CYKA????
By mPotatoLord
A word that has simply lost all meaning throughout history. It’s definition has faded into obscurity after being trending on Urban Dictionary for almost two years.
Rush B Cyka Blyat used to be in the trending list on UrbanDict for 2 years along with Girls who eat carrots, Watermelon Sugar, Ghetto Spread. Thank goodness they removed the list forever.
By Shiine-1
A term used by many gamers (especially by or to imitate Russians) of CSGO (a first-person shooter). The phrase breaks down into 2 parts. Rush B = B is a bomb plant site in maps in CSGO where the terrorists (a team) can plant the bomb to win. Rush B is, in some maps, the fastest to plant at, and therefore win. Cyka Blyat = A russian phrase, сука блять, to offensively address a prostitute. In this case it is used in distress to show annoyance or desperation, as would FFS. Used also to address friends in a jokey way, used non-offensively. 'Rush B Cyka Blyat' together is used to tell other teammates that the team should plant the bomb (objective to win) in the bomb site B (location).
Person 1: "What can we do, we are going to lose?" Person 2: "RUSH B CYKA BLYAT!!"
By TUGA-FOREVA