Definition & Meaning of "one-tap"in English

What does "to one-tap" mean in gaming slang?

It is used to describe killing an opponent with a single well placed shot, typically a headshot, without needing a follow up attack. Players often celebrate a one-tap as a display of precision and skill, especially in first person shooters where landing a single clean shot feels more impressive than spraying bullets. The term originated in competitive shooters like "Counter-Strike" and "Valorant" during the 2010s, where tapping the fire button once for a perfect headshot became a signature move for skilled players.