Vietcong is a 2003 first-person shooter developed by the Czech studio Pterodon and set during the Vietnam War, where players fight through jungle missions against Viet Cong soldiers. The 'Jedu Jedu' shout comes from the game's enemy voice lines, and Czech players turned it into a meme because the cry sounds exactly like the Czech word for 'I'm coming', giving every ambush an unintentionally funny double meaning. Like other tactical shooter voice lines such as enemy spotted callouts and the bomb has been planted announcement, it survives as a punchy clip that creators drop into war edits and comedy videos.