Fillip

fil·lip n.

1. A snap or light blow made by pressing a fingertip against the thumb and suddenly releasing it.
2. An embellishment that excites or stimulates: “Spritely tabasco onions, just a little crunch for the top, were an added fillip” (Alison Arnett).
3. One that is trivial or of little importance.

I don't imagine there's a reason it should be spelled fillip when he would mean Phillip.