Tilted

Etymology

From poker, where “on tilt” describes a player who, rattled by a bad beat, abandons disciplined play for reckless, emotional bets. The image is of a pinball machine knocked askew — tilted — so it no longer plays true. Competitive video gaming adopted it wholesale in the 2010s, and “tilted” spread from there to any situation where frustration wrecks your composure.

adjective · /TIL-tid/
So frustrated or rattled that your judgment and performance start to slip.
What it names
It names a specific failure mode: not just being angry, but being angry in a way that degrades how well you think and act. Recognizing you are tilted is the first step to stepping away before you make it worse — the emotion has taken the wheel from the skill.
Example
I lost three games in a row and got so tilted I couldn’t play straight for the rest of the night.
Related idea
More specific than merely frustrated: being tilted is frustration that has begun to corrupt your decisions, not just your mood.