Muckspreads 

The act of a hippopotamus shiting while waving its tail in a back in forth manner making the shit seem as if its been put into a fan

I'd rather place my face against a hippopotamuses butt while it muckspreads.

Muckspreads by Jahgee1124 October 10, 2012

Muckspread 

When an animal is taking a poop as its tail presses against its anus, making the poop shredded up as it drips out.

The Hippo muckspread as it was yawning.

Muckspread by Bassistfreak July 13, 2011

muckums 

Milky, rich and creamy substance which can be milked from the penis. A vitamin-and-mineral-filled staple. The milk of life.

Having no way to produce muckums on their own, the lesbians decided to hire multiple males to repeatedly fuck them until their vaginas were overflowing with the hot milk before taking turns to drink the sweet muckums from between their spread legs.

muckums by Rob Focker January 10, 2006

Mockup 

In manufacturing and design, a mockup, or mock-up, is a scale or full-size model of a design or device, used for teaching, demonstration, evaluating a design, promotion, and other purposes. A mockup is called a prototype if it provides at least part of the functionality of a system and enables testing of a design.

I wanted to mockup my civic with my new "vtec" sticker to see how much horsepower I would gain.

Mockup by Envious III August 6, 2010

Muckspreader

A term used for a larger than normal pair of buttocks

Omg check out the size of that muckspreader !

Muckspreader by Mickyblueeyes November 25, 2018

Muckspammer 

Noun - A person of any sexual orientation who constantly demands that people acknowledge and accept homosexual sex as normal and equal in all respects to straight sex, irrespective of another person's religious views or whether the issue is appropriate to the circumstances.

(1) Jennifer's baptismal ceremony was spoiled by her muckspammer Uncle Ted, who yelled at the Catholic priest and called him a homophobe because he talked about the union of Jennifer's parents during his homily without mentioning same-sex unions.
(2) Dude, we're eating; stop being a muckspammer. I don't want to hear about your latest gay sex conquest. You're my friend, but when you talk about your sex life, I want to throw up.

Muckspammer by PaulNYC January 7, 2011

Muckum 

An arab derogatory for any person of Asian decent. Especially old ones or fat ones. Often seen in Casinos.

Samir: Did you see that Muckum at the Baccarat table over there?

Youssef: Of course I did! That old guy just lost $40,000 on one hand!

Muckum by UmbaShenouda July 1, 2011