Provenance — where it came from
The word ドパガキ (dopa-gaki) appeared in Japanese internet slang around 2024, built from two plain parts: dopamine, the brain chemical tied to reward, and gaki, an old, blunt word for a kid or brat. Together, a dopa-gaki is someone so used to the strong, fast rewards of short videos and games that quieter things — a long book, a slow conversation, a task with no reward for an hour — no longer hold them. Attention slides off.
The word cuts two ways. It can be thrown outward — at a whole generation, or at one person in the room — writing someone off as a person whose attention has been ruined by screens. And it is turned inward, on oneself, as a joke: “I’m such a dopa-gaki, I checked my phone four times reading this.” In everyday use the self-mocking version is the common one, but the sting is real. The same word that lets you laugh at yourself lets you look down on someone else, and it does both.
Dopa-gaki is street slang, not medicine. It names no real condition, and it is not a diagnosis to pin on anyone. What it records is a generation that had noticed the machines in their hands quietly rebuilding their own attention, and had found a single word — half confession, half jab — to say so.
Field notes — how it’s used
ドパガキだから3分の動画も倍速で見ちゃう
dopa-gaki dakara sanpun no dōga mo baisoku de michau
“I’m a dopa-gaki, so I watch even a three-minute video at double speed.” — the common, self-mocking use; the same word can also be aimed at someone else.