Team Kill
Noun · Slang & Abbreviations
Definitions
A move that harms your own team, intentionally or not, borrowing from multiplayer game language. In engineering slang, team kills include surprise changes, bad escalations, and avoidable internal breakage.
In plain English: An action that hurts your own side instead of helping it.
Example: "Merging the schema change without warning downstream consumers was a team kill, not a harmless optimization."