moop 

A neutral version of meep. Can be also used randomly..

1st person (who is excited): Meep!
2nd person (who is not excited): Moop.

or

Moop.

moop by ladyjulianne November 30, 2003

Moop 

a word to fill the silence with the hopes of making the other person laugh.

I said moop and things were comfortable again.

Moop by Jeanette October 23, 2003

moop 

1. Offensive term used to describe the mentally and physically challenged; slow witted, uncoordinated, stupid. retard downie

2. The name of Kiles band in South Park

Ex. moop-ball - A way to describe the quality of a sporting event. Co-ed softball can also be referred to as "Moop-Ball" because the quality of the game is so poor.

Ex. After your third car accident in a year your driving skills can be described as moop-ish or moop-like.
i.e. You drive like a moop!

moop by mgilly December 9, 2008

Moop 

The name of Stan, Kyle and Kenny's band on South Park.

Cartman's Christian rock band, Faith +1, went on to make millions of dollars while Moop decided to protest illegal downloads of music.

Moop by Bubba Bubba Bubba April 28, 2007

Moop 

The noise a turtle makes.
Moop is used as a replacement for "awkward turtle" or when a person just feels the need to say "moop".

Hey, how are you today?
Great thanks you?
I'm fine.

...
...moop

Moop by Stefan the Rippah December 4, 2011

Moop 

The Opposite of Meep.

Moop! Moop! Moop! Moop! Moop!

Moop by David Honsberger November 15, 2004

moop 

Acronym for Matter Out Of Place

mr. Belvedere was moop at the anime convention

moop by Helne April 8, 2005