Cheeki Breeki is a meme phrase most closely linked to the bandit dialogue from GSC Game World's S.T.A.L.K.E.R. series, especially Shadow of Chernobyl from 2007. The line spread widely through gaming videos, machinima, compilations and Slavic gaming memes, where it became shorthand for bandits, ambushes and suspicious crouch-walking. Its popularity lasted because the phrase is short, rhythmic and easy to recognise even out of context, making it a reliable audio cue for stealth jokes and post-apocalyptic game references.