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The act of staying in your room for days at a time, not showering, and avoiding social interaction to the point of becoming a greasy, unhealthy slob. Usually accompanied by heavy use of the internet and/or video games. A fermenter's natural habitat is typically found in the dark corners of sites like 4chan, reddit, and twitch.

Once you start to ferment, it can be hard to get out, usually requiring some sort of wake-up call from the outside world. Some fermenters never get this wake-up call or ignore it, resulting in a lifetime spent mostly in their rooms.

Fermentation can lead to later complications such as depression, anxiety, anti-sociality, obesity, diabetes, and more.
Friend 1: Hey man, were gonna see a movie tonight, wanna come?
Friend 2: Nah dude, I gotta rank up on League of Legends, I'm gonna pass this time.
Friend 1: Bro you've been playing that game for three days straight, you're fermenting dude!
Friend 2: Shit man, you're right. Imma take a shower and join y'all
ferment by edges64 June 20, 2019
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1. the art of 'mellowing' or cooling down when one has previously been in a bit of a furor,

2. to receed from a heated discussion or outburst.
adam :dude!? what the hell did you do that for? does it look like my name is bob geldoff?

sam :well if you'd like to ferment...
ferment by s.M June 18, 2006

Femmentation

Like when a woman says "it's fine"
The festering of frustrating feelings in a woman is known as femmentation.

Eg. The frustrating feeling a woman experiences when her man says something she believes is mad ridiculous and her emotions fester and ferment into something that may eventually become potentially disastrous.
1) having great emotion towards someone; being passionate towards someone; or loving someone.
2) state of something being fierce or intense.
1)I am fervent for the new girl.
2)His typing skills were fervent.
Fervent by Rsd24 December 20, 2008

Fermented Freddy 

Fermented Freddy (noun) is a speciality beverage that is commonly consumed after a Bukkake session or during special events that call for an especially flavourful beverage.

The process in which the Fermented Freddy is made is simple, yet very satisfying.

1. Begin by firstly performing anal sex with a significant other, or volunteer; keep in my that the duration of the sex has a direct correlation with the flavour and robustness of the final product.

2. The male ejaculates fully within the female (or male) partner.
3. The male takes a wine bottle cork (warning: the material of the cork will affect the flavour) and places it within the females (or males) anus, thus beginning the "fermenting" process.
4. Age the product a minimum of 24 hours until the "Freddy" is "fermented" to perfection.

5. Uncork and Enjoy!
Matt: "Hey its Fourth of July Weekend we should get some nice beers!"

Jordan: "Yeah, but we had beers last night..."

Morgan: "Hey I know you guys, lets make some fermented Freddy!"

(Warning: Over fermentation may cause severe stomach cramps and/or death)
Fermented Freddy by DPI001 July 5, 2011

ferentus 

An MMORPG that shut down due to lack of funds ;(
"Hey Andy Lets Play Ferentus ! "
"We Can't It shut down ! "
ferentus by Jcax October 13, 2006
very enthusiastically or passionately
"he fervently believes he's doing the right thing"
fervently by babychickentender September 16, 2017
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That ol' gal of mine drives the 12 lane freeway during the week and a John Deere on the weekends. She likes opra and the Grand Ol' Opry. I love them countrypolitan women.
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The number of years you are still sexually active
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
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