A fork of Rural Dictionary
When a male, or transvestite *cough Caitlin jenner* decides to get a little wish in there pants and wants to take themselves to horn dog town, they beat their meat. And when someone beats they meat it is called spanking their monkey
Man I was on her insta and I just whipped it out and started spanking my monkey
another way of saying to masturbate; to beat off.
"I get so much ass I never find time to spank my monkey."