Filthy Well

Upon hearing your significant other claim that they have to shit: Eating out your partner's asshole up to a point where he/she begs you to stop, as they are going to defecate right then and there - yet the tongue keeps searching for sweet, sweet aqua.

Alisa woke up last night and headed for the toilet - I got there just in time to give her a Filthy Well - it ended up messy.