The line comes from the bomb defusal mode in Counter-Strike, where counter-terrorists win by disarming the explosive before it detonates. It is the closing counterpart to the bomb has been planted announcement at the start of the round, and together the two lines bookend almost every competitive match. Clips of the Russian version spread through gaming videos and soundboards because the phrasing is instantly recognisable to players, while the deadpan tone makes it easy to reuse as a punchline for any tense situation resolved in time.
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The Counter-Strike bomb has been defused announcement in Russian, played when the CT side wins the round, now used as a gaming meme sound effect.
This is the short Russian voice announcement that plays in Counter-Strike when the bomb is successfully defused. A calm, flat male announcer states that the bomb has been disarmed, with no music or extra effects behind the line. The delivery is completely matter of fact, which is exactly why it lands so well outside the game. Hearing that official sounding confirmation after chaos instantly signals relief, success and a round that is finally over, even when viewers have never played the match themselves.