onoma 

To be a onoma is to be an intelligent, guy who uses less energy to solve difficult problems easily. "Minimum effort maximum efficiency" is what describes onoma.

Come on be an onoma and solve it.

onoma by ddddont@me November 23, 2021

Onomatopenis 

1. The word used to describe the sounds that a penis makes.
2. Word invented by the mysterious Robespierre during the first GD movie night.
3. The title of a CD that will be released in the future.
4. User name of the only certified cool-point distributor on Gaiaonline.com

1. I'm writing a sexy story. What's an onomatopenis that I can use?
2. "No, call your CD Onomatopenis."
3."Okay, fine. If I ever release a CD, I'm going to call it Onomatopenis."
4. "Onomatopenis, everyone only loves you because of your username, but that's okay, because it's amazing."

Onomatopenis by Onomanomona August 18, 2009

oomaharumooma 

An exclamation of extreme emotion or a spiritual aid. Used in Henry Miller's Tropic of Cancer.

oomaharumooma! oomaharumooma! oomaharumooma!

oomaharumooma by Lizzie Simon June 11, 2006

Onomé 

Onomé is a loving friend who will always be there for those she loves 💗 no matter the circumstance. She cares for others more than herself and always has a smile on her face,she enjoys making others happy and is a ride or die chick. You’d be very lucky to have Onomé as she is one of the realist people you’ll ever meet. She speaks her mind and doesn’t care who’s around. Don’t disrespect her or those she loves because she will certainly have find you

I’m very lucky to have an Onomé💗

Onomé by Jurneah June 10, 2018

Osomatsu 

Osomatsu is a eldest brother of the sextuplets of the anime Osomatsu-san. He is famous for playing pachinko, being silly, rubbing his nose with his finger and doing the money sign with his hand. He acts like the leader sometimes but he is actually a cute dork. He usually wears a red jumper and jeans.

Person 1: Who is ur fave Matsuno brother?
Person 2: I love Osomatsu!

Osomatsu by Breanime145 August 9, 2017

ONMA

It's Ukrainian University, but in modern language it's used to describe some really shitty place to study in.

SMB1:My university turned out to be ONMA.
SMB1: Oh, stay strong, man!

ONMA by Mr. CADET February 11, 2021

Osomatsu-san

The mind-fukery of an anime that came out in 2015.
English name:: Mr.Osomatsu
To celebrate Akatsuka Fujio's 80th birthday, Osomatsu-san continued the adventures of the Matsuno sextuplets from Akatsuka-sensei's manga and anime Osomatsu-kun.
As for its contents, Osomatsu-san is about the Matsuno sextuplets' lives as twenty-something virgin NEETs. Interesting right?

First you have the "miraculous idiot" Osomatsu, then the "cool idiot" Karamatsu, the "reasonable idiot" Choromatsu, the "pitch-black idiot" Ichimatsu, the "of-another-dimention idiot" Jyushimatsu, and finally the "good-at-letting-others-pamper-him" idiot Todomatsu.
Episode count(not including extras):: 25
Genre(ep1-23 & 25)::Comedy. Episode 24::Suffering

This anime that was thought to be one of those that would just slip under everyone's radars and be "that one anime that I never got to watching" is now one of the most popular anime in Japan. So y'know...why don't ya go watch it?

Osomatsu-san is an anime.
I honestly don't know what sentences you would use Osomatsu-san in.

Osomatsu-san by Ichimat June 16, 2017