A fork of Rural Dictionary
See muff diver. One who performs oral sex on their partner (usually female). Pubic hair provides ample 'forest'.
Person 1: So let me get this straight, Amy and Katie did -what- last night? Person 2: Well, let's just say that Amy's skills as a forest ranger have improved ten-fold.
Standing up like a tree while your partner "inspects" your wood like a forest ranger.
Me and my girlfriend got in the forest ranger position.