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An obese woman with a minimum weight of 500lbs that plays World of Warcraft all day everyday.

This typical woman is unemployed, uneducated, and lives in a trailer. She will also flirt behind her boyfriends' back in order to get food and snacks from unsuspecting men.

Her picture is known for making men vomit on site.

She is also horrible at video games because of all the food residue constantly on her fat fingers. Her keyboard is known for having KFC chicken and burger meat under neath the keys.
1)

Guild Chat: 'What happened to all the food in the guild bank?'
Rubisco: 'Sorry, I ate it. It just looked so good.'

2)
Lugash: 'Didn't I just spend $200 at the grocery store today?'
Rubisco: *burps* 'Yeah, hun, you did.'
Rubisco by Voodooi June 26, 2010
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1.) The enzyme that catalyzes the first step of the Calvin cycle during photosynthesis: the addition of a molecule of CO2 to ribulose bisphosphate. Also called ribulose 1,5-bisphosphate carboxylase/oxygenase.

2.) The nickname given to a man who joins a five person orgy.
1.) As you can see in figure 11.23, rubisco is the enzyme that catalyzed the first step of the Calvin cycle during photosynthesis.

2.)Dude, I was totally enjoying that five person orgy but then rubisco had to come and mess it up.
Rubisco by rEstiNGpOTENial3892 November 5, 2009

Rubicon'd Up 

When you are all wired up and excited after a Rubicon 7 performance.
We want to have a little fun but don't want to get all Rubicon'd Up.
Rubicon'd Up by KC Jonez April 18, 2014

I have crossed the rubicon 

To pass a point of no return ; or To make a decision that can't be changed.
I have crossed the Rubicon; I will never work at walmart again.

Crossing the Rubicon 

Crossing the Point of No Return. Named after Julius Cesar, who according to lore crossed said river into Rome, effectively declaring war.
I was Crossing the Rubicon the moment I thought he was too stupid to notice that I slept with his Girlfriend. He beat my ass so hard that to this day I twitch every time I hear the name Sasha.

Who's Sasha?

*twitch*
badass jeep that costs way less than an h2 but is way fuckin better unless ur a soccer mom
hey, check out this video of me rock crawlin in my rubicon
rubicon by jorge February 11, 2005
The line crossed when you find yourself too good of friends with someone to date them.
So I thought I was on a date with Jane then she started talking about some dude she wants to bang and I found myself crossing the Rubicon.
rubicon by veganinfurs January 22, 2005