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monosexism 

The belief that bisexual, omnisexual and pansexual identities and behaviors are inferior to monosexuality, or that any identity beyond monosexuality does not exist.

Any speech or behavior that is biased against people beyond a monosexual identity.
Monosexism claims that a person can only be gay or straight, and that anyone who is not is either lying or confused.
monosexism by RangerTom November 4, 2008

Monopolist

A person who is obsessed with the board game Monopoly. Most Monopolists can name the properties in order and the rent for most spaces.
It took us 30 minutes to decide on a game beause Jacob over there is a Monopolist, suggesting the MLB, NFL, Disney, Peanuts, Star Wars, and original before deciding on "Clue."
Monopolist by geniusonwheels February 12, 2009
A very small penis,
unable to penetrate a vagina.
You have such a minipenis.
minipenis by Justin April 20, 2005
A very small weiner, or penis.
Almost unseeable.
That guy in the locker room had such a minipenis.
minipenis by Justin April 20, 2005

Penis Monpañios Monpeñios 

This phrase to be spoken very quickly, almost as to seem Spanish in nature.

“Penis Monpañios Monpeñios” was originally created as an alter-ego amongst a group of friends in Sacramento, California in 2007. This character was a member of club 697; where you must have been 6’9” tall, and 7” long. Inside the club, all they did was 69. The spirit of Penis Monpañios Monpeñios still wanders the fields of the Thicket of Zatarains, located in Granite Bay, California.

In the years since, this has spread to LA as a nonsense phrase (similar to that of Rim Pum). Among groups of pot-smoking individuals, this phrase has commonly been used as a comical outburst or a friendly greeting during times of great stoning. Abbreviations such as simply saying “Monpañios” tend to be common.
Tom: "Monpeñios to you my friend!"

Steve: "Ah, Penis Monpañios Tom!"

Dave (from the back of the room): "Tom!! Penis Monpañios Monpeñios!!"

monopenisual 

adj. showing no care, concern or preference in the matter

Indifferent, uninvolved, detached.
Q: "What is your take on war partial birth abortions?"
A: "Monopenisual."
monopenisual by TObject March 26, 2004
More from Urban Dictionary

piddlefart

verb. To waste time doing nothing.
Instead of doing my homework, I decided to piddlefart around for two hours.
piddlefart by Rene April 25, 2005
Word of the Day on October 9, 2026
anyone who succeeds in disgracing/over indulging themselves in the throws of clubland
28 hours and 4 clubs later, gurning for england but still refusing to go home - a total wrongun!!
wrongun by bevvers March 21, 2007
Word of the Day on October 8, 2026

square grouper

Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
"Base we've got some square groupers floating outside of Miami harbor."
square grouper by slipsheet November 6, 2004
Word of the Day on October 7, 2026
A girl who does ballet and only talks about ballet. Her schedule is filled with dance classes which does not allow her to do any other activity.
"Hey, do you know that girl Sally?"

"Yeah, she's kind of annoying. All she ever talks about it ballet."

"Wow, what a Bunhead."

"Hey Sally, you want to hang out this weekend?"
"I can't, I have dance."
"You're such a Bunhead."

"Yeah... I know."
Bunhead by Jen00 October 24, 2014
Word of the Day on October 6, 2026

trucker's tan 

A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.
I had a trucker's tan after driving for 10 straight hours on a sunny day.
Word of the Day on October 5, 2026
The phenomenon where adults salivate at children's toys
Every time I walk into the toy aisle, I catch myself kidulting over the latest action figures and LEGO sets!
kidulting by Emotional Cruiser October 12, 2025
Word of the Day on October 4, 2026
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