When you experience an unexpected release of wet gas and spew a little brown shat spray on your partners face while they are performing a little rimming/analingus on your leather donut.
During this unfortunate or fortunate (however you look at it) incident, the wet fecal matter is sprayed upon your partner's face creating a brown freckle pattern.
I got rimmed last night braaahh. Felt great till a felt a little pressure. I tried to hold it in but I gave Rachel the freckler. She looked like a ginger girl with all them freckles.
Guy 1: Did you see Jack's new freckles?
Guy 2: More freckles? He's always getting new ones, like he's growing them.
Guy 1: Yeah, he's a freckle farmer.