Onionman 

Describes someone who doesn't take a shower for days at a time. Their oder gives off a very strong onion smell, that can be smelt from multiple yards away.

Onionman will you please take a shower before you get into my car or come over my house.

Onionman by Jon Death Murphy April 18, 2009

onion man 

The person that you think you keep seeing after a hard alcohol session ( usually two days or more ).
This is a section of paranoia you suffer as a result of drinking.

Lying in bed after a 2-3 day alcohol session sweating hard, onion man is standing over your bed supervising and wont go away.
He appears in your dreams and can be seen through the corner of your eye on occasions forcing one to constantly look over ones shoulder.

onion man by Milosovic July 14, 2006

oniomania 

Oniomania is a technical term to describe "compulsive shopping." It may be used by psychologists who want to impress their colleagues.

- Laura is such a shopaholic!
- Yes indeed, hers could be described as a bad case of oniomania.

oniomania by Bylu July 5, 2010

Onion Man 

The coolest gamer ever. Known for being so cool.

( A very cool person)
Very awesome

Onion Man is so cool

Onion Man by Super cool guy oh yeah I so co July 16, 2022

Onion Man 

Super cool. A really cool guy.
(Really cool and awesome)
An awesome person. So cool

Onion Man is so cool

Onion Man by Super cool guy oh yeah I so co July 16, 2022

Onion man 

A man who smells so vile that the stench can only be described as “smelling of onions”

Friend 1: You know that one guy, name right?
Friend 2: Yeahhh… he smells so bad, it’s like… onions.
Friend 1: He’s like a superhero! Onion man to the rescue!
Friend 2: A superVILLAIN, you mean.

Onion man by I hate onions (raw+green) May 29, 2024

Onionment

To apply ointment and become one with the onion

I'm very akin to onionment along with my fellow onion brethren.

Onionment by onionmenthol September 16, 2025