What does 作画 Sakuga mean?

Sakuga (作画) means the drawing work of animation, including the ordinary parts. The fandom sense of a spectacular sequence is a narrowing of it.

Written
作画 (sakuga)
Literally
作 (saku, to make) with 画 (ga, picture). The making of the drawings: in ordinary industry use it simply means the animation work.
As slang
Standard production vocabulary in Japanese, appearing in job titles. The enthusiast sense of a spectacular cut is a narrowing, in both languages.
In anime
English fandom uses it to mean a scene where the animation suddenly becomes extraordinary. The Japanese term covers the routine work as well.

Sakuga is the drawing work in animation. As industry vocabulary it covers all of it: the spectacular cuts, the quiet conversations, and the shots where two characters stand still and nothing much happens.

The characters, and the credits

作 (saku) is to make or produce. 画 (ga) is a picture, the same character in manga. The compound is a plain description of the task, and it turns up in job titles: the person supervising the drawing on an episode holds a role built on this word.

That is the clearest evidence of the breadth. A credit is not awarded for excellence; it names a function, and the function includes every frame.

The enthusiast sense

Among animation fans, in English and among a subset of Japanese fans too, the word came to point at the moments when the drawing becomes remarkable: a fight sequence that outruns the rest of the episode, a cut where a single animator's hand is visible. Good sakuga, in that usage, is nearly a tautology, since the word has already come to imply quality.

This is worth stating carefully, because the narrowing is not purely a foreign misunderstanding. It happened inside Japanese fandom as well, which makes it different from the cases where English alone did the narrowing.

Why the enthusiast sense was useful

Because it names something that had no name. Animation is normally discussed by title, studio or director, and the unit that actually varies most, the individual cut and the individual animator, had no vocabulary attached to it in ordinary criticism.

A word meaning the drawing work, repurposed to mean the drawing work when it is exceptional, gave fans a way to talk about authorship at the level of seconds rather than episodes. That is a genuine critical advance and it came from fandom rather than from the trade.

What gets lost

The routine work. An episode is mostly not spectacular, and the labour of making unremarkable footage read as effortless is the larger part of the job and the part the narrowed sense makes invisible.

The Japanese word includes it. A viewer using the fandom sense exclusively ends up with a vocabulary that can praise a virtuoso cut and cannot describe the four hundred competent ones around it.

Quick answers

What does sakuga mean?

作 (saku, to make) with 画 (ga, picture). The making of the drawings: in ordinary industry use it simply means the animation work.

Is sakuga an insult?

Standard production vocabulary in Japanese, appearing in job titles. The enthusiast sense of a spectacular cut is a narrowing, in both languages.

What does sakuga mean in anime?

English fandom uses it to mean a scene where the animation suddenly becomes extraordinary. The Japanese term covers the routine work as well.