When a male fucks another male in the ass so hard with a BBC so it gets so wide open. So that when he eats something it will simply fall out of him. Typically using cum or blood as lubricant.
by hunky.boy42 September 18, 2021

by ChadTheSimpKing January 11, 2024

its another word of saying ''kill your self'' but not so violent. Just replacing ''kill'' for ''mill''
by yurrrdurrr March 21, 2022

by anonymous May 22, 2022

To serve as the "bottom" in a homosexual "train" at an orgy, from the concept of erections being called wood and lots of wood runs through a mill.
by BGPounder@fatfish.net June 6, 2025

The most beautiful and amazing boy in the World, the funniest, cutest and the best british speaking spanish!!
by Spainmills December 27, 2018

Millie Bobby Brown’s beauty line! Has skincare, makeup, and haircare. I have many products ! They are really nice, hydrating, refreshing and great! But one day!!
by Mills fan August 21, 2022
