Fang dangin is used to describe When someone is doing something loosely but with passion
Like a bango player flicking out rhythms
And hillbillys dancing
"Man! Johnny is fang dangin that guitar"
The girl was fang dangin her clit.
"Those are some fang dangin dance moves"
Girl: hey babe do u wanna share a salad?
Guy: haha no. I'm fang dangin'!! I'm getting a steak