Brown Elevens 

The mark left in your underwear after relieving yourself from a deep anal itch.

Man, my asshole itched so bad; I don't think the brown elevens will ever wash out of my undies.

Brown Elevens by NoodleFag November 22, 2018

brown elevens 

The marks you make on a toilet wall with your forefinger and middle finger after you find out too late there is no toilet paper left.

The toilet was a total disgrace, the walls were liberally covered with brown elevens.

brown elevens by Edna Sweetlove October 1, 2006