Mocking imitation of a style or genre — not malicious, but exaggerated with a wink. Tarantino deploys this constantly to deconstruct genre conventions.
You know the drill: you take the mannerisms of a genre or director, deliberately exaggerate them, and constantly signal to the viewer that we are intentionally overdoing it here. That's persiflage—and it's one of the most dangerous weapons in a director's arsenal because it can go horribly wrong. The difference from pure parody lies in the affection: you're not making fun of the material, but making fun WITH it. It's about affectionate destruction.
On set, you notice it immediately in the tonality. The actors have to maintain this balancing act between seriousness and exaggeration—one wrong move and it becomes stupid instead of clever. Tarantino always achieves this through dialogue. His characters speak like they're from a Blaxploitation film or a Western, but with a syntax that seems impossible. The audience knows: this isn't meant to be authentic, but they respect the convention enough to play along. That's the trick. You quote the genre's language but make it unmistakably artificial.
In visual language, persiflage works through over-concretization. Instead of subtle lighting in film noir, we use lighting that is SO hard and precise that it appears artificial. The camera movements are too perfect, the editing too rhythmic. Here too: signal that we know this. The viewer should see the wink. This is different from homage—with homage, you quote respectfully; here, you quote and do cartwheels while doing it.
The danger is that persiflage can very quickly come across as patronizing. If the audience feels you think they're stupid because you're deconstructing conventions so obviously, it's over. The best protection: you must be able to be indifferent to the genre itself—but never to its potential. You only destroy what you truly understand. Everything else is just noise. In editing, pauses become important: you need space for the audience to understand the joke, not to explain it.