Duck Muck

The residue left around the bell end of the penis after anal sex. Generally, an amalgam of fecal remnants, cum and booty juice. Known for its ripe, pungent odor.

She went right down on it after anal braaaahhhh. Didn’t even wipe off the duck muck.

Hey braaaaaahhh. Tell your mom to wipe the duck muck off her lips before she comes see me later.

Roger has a lot of duck muck under his foreskin.