Ghost notes are one of the coolest bass techniques.
They add percussion, groove, and panache to your playing and are found in many styles, not just funk. It is used a lot in funk bass though.
If you want to dive deeper into funk bass techniques, style, and theory, I have a whole course:
For this lesson, be sure to scroll down to download the free PDF and backing track and to hear the incredible playing in the ghost note playlist I put together...
Ghost Note Backing Track & PDF
Bass Guitar Ghost Note Essential Listening
Check out these cool bass lines featuring funky ghost notes! The bass lines, tones, and technique are astounding in these songs.
Give them a listen and see if you can figure out anything you like the sound of.