Metamucil 

Stuff that makes even the most constipated individual have an ass explosion.

I took some Metamucil an hour ago and ended up with the worst intestinal contractions known to man.

Metamucil by Terri March 2, 2004

Metamucil 

a type of medicine that cleans you out, or makes u poo. gives u fiber...comes in capsules or drinks...tastes sooooo bad

ugh, i hate metamucil!

Metamucil by marilyn May 13, 2005

Metamucil Mule 

1 tbsp metamucil
3 oz Costco vodka
2 oz water

Johnny knew it all too well. When he travelled, dry ass-brownies would slowly form. He would soon become excrementally challenged. He turned to a friend who, in turn, prescribed a Metamucil Mule.

Metamucil Mule by KRmd November 20, 2017

The Metamucil 

When you are going doggy-style on a girl, you give her a donkey punch. Then, while she is stunned, you reach into her anus and pull out her large intestine, string it around her neck, and strangle her to the point of passing out. Her passing out causes a tightening of the vaginal canal and a pleasurable sensation.

i gave that bitch the metamucil last night. her mum walked in so i donkey-punched her and gave her the metamucil aswel.

The Metamucil by BRIAN KID July 7, 2006

Metamilfisizing 

The process of turning into a milf

Ever since I got pregnant I can feel myself Metamilfisizing

Metamilfisizing by PhatAshkenaziB00bies April 6, 2021

metamilfosis

The process of becoming a highly desirable older woman

By her fortieth birthday Lucia's metamilfosis was complete.

metamilfosis by philologue August 22, 2011

metumucil 

disgusting fiber drink to help constipation

ewww, its metumucil thats gross!!

metumucil by marilyn February 24, 2005