"This is on my…" she started, reaching for the notebook where she'd scribbled bullet points. But her fingers, still clumsy from morning stiffness, knocked the mug. Tea cascaded across the keyboard.
It sounds like you're referencing a specific clip or filename — possibly from a recording, a stream, or a personal video labeled "Mp4 SS Nita 03 This Is On My --39-woops Slip--39- Fil..."
If you’d like, I can craft a short story based on that title, imagining what might be happening in that video. Here’s one possibility: This Is On My — Woops, Slip — File