Burning Bush is what Moses saw up on the mountain. Moses came back to camp after going for a long hike up the hill, and when everybody asked him "where you been?" he jabbered about a שִׂיחַ a discourse -- he talked to somebody. But שִׂיחַ also means "bush" in Hebrew. So this story got started that all the jibberjabber came from a bush. And then the story got jazzed up to be a burning bush, because they were making fun of how this bush was what Urban Dictionary calls a burning bush -- a cunt that's been seasoned with hot sauce just for cunnilungus. Somehow that joke became THE most widely told story all over the world -- about the Burning Bush.

When you need to shave but don’t have a lot of time, you perform a burning bush, lighting fire to your pubes and watch them burn away like a forest fire

When you fuck someone so hard the friction sets the pubes on fire

A ginger's pubic hair; a Fiery crotch; volcanic thunder from down under