Poo Brothers
Similar to Blood Brothers, where two best friends stand back to back naked from the waste down. Cheek to cheek they bend over and force out a poo each. When the poo meets in the middle it becomes one symbolising the unbreakable bond of poo brothers.
You're the coolest friend I could ever dream of, do yuu want to be Poo Brothers? You know what they say..... Poo is thicker than water