Coined in 1951, a brown margaret is a sexual act, where one does not wipe after a bowel movement is given a rimjob.
Person 1: "Oh man, last night was crazy, my mouth still tastes terrible."
Person 2: "Did you go down on a chick or something?"
Person 1: "Nah man, I gave her a brown Margaret."
Person 2: "Did you go down on a chick or something?"
Person 1: "Nah man, I gave her a brown Margaret."
by RipVanWinkle1907 April 30, 2025