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1. A term for a boyfriend with the disposition of Olaf the Snowman, who is also incredibly injury prone. 2. Something that Mario says on the third jump in Mario 64.
Elsa: "what happened to him!?"
Anna: "he had a sledding accident involving a tree, a reindeer, a small puddle, and four penguins."
Elsa: "oh he is such a..."
Together: "...Mooboo..."
OR
Mario:"whop, whoop, MOOBOO :D"
Mooboo by Funnybunnyboo November 3, 2014

monoboob 

The unfortunate (but often hilarious) result of a busty woman fitting herself into a swimsuit too small for her body. The suit's tight fabric crushes her breasts together, creating a single, enormous boob in the center of her chest.
D00d, that chick's monoboob is outta control! She looks like a boobclops.
monoboob by Tommy Wommy Womsters January 23, 2005

monoboobular 

only having one boob.
that chic is monoboobular.
monoboobular by susieq55 July 20, 2008
- A man that has boobs, this guy usually overweight and/or obese. This is a socially embarrassing condition.

- It has been said that marijuana causes moboobs (man boobs)
guy #1: dude, did you see that guys moboobs?!?
guy #2: yeah bro, they were bigger than Alice's
Moboobs by OWLhunter January 18, 2010

mohoboob 

To be arrogant without reason, a know it all, thinking your the bollocks
that kid is a right mohoboob
mohoboob by Benjammmine October 16, 2010

Monoboob 

A word used to describe boobs of Amazonian war princesses who wanted to cut off their boobs for better performance at battlefields but made a compromise to cut only one side as they had to breastfeed babies. It is an old, traditional custom that goes back to as far as the Golden Age of Greece, but is often overlooked by commercial businesses that make movies with pretty girls that have both wild tendencies and boobs.
Why doesn't Wonder Woman have monoboob too?
Monoboob by EunhaeLee May 31, 2017