immuno-optimism 

Positive thinking regarding one's immune system especially when one's faced with probable or widespread contagion.

Leo: Are you sure you want to come over for dinner? My sister has chicken pox, my dad has the flu, and I'm still getting over the clap.
Kay: Sure, I'm not worried, I never get sick.
Leo: Wow babe, that's some serious immuno-optimism.

immuno-optimism by schulwitz April 10, 2012

Asshole Optimism 

When someone tries to put an optimistic spin on an unfotmunate situation, but has a sarcastic intent, and ends up subtly coming off as an asshole.

"It's cool that you have no car like everyone else," said Lucas, "now you can have fun riding your bike everywhere." In a show of asshole optimism.

Asshole Optimism by doktorj March 8, 2014

Doomer Optimism 

A collective dedicated to discovering regenerative paths forward, highlighting the people working for a better world, and connecting seekers to doers.

Things are bad but let’s stay positive and follow a path of doomer optimism

Doomer Optimism by Longyear April 27, 2022

Blind Optimism 

to be optimistic without any reason.

She hopped into the car with him, not knowing where he was taking her. He filled her with blind optimism.

Blind Optimism by zishy August 12, 2014

Optimism

"Optimism is the opium of the masses.
Pessimism is the pesticide of society." - Ken Muslimvoic

I guess he meant that hope gives the masses fake illusions in the way things are.. and negative pessimism and mistrust in society weeds out "social agitators" and keeps them from doing anything.

Optimism by Ryszard November 13, 2003

Optimism

Shaving your asshole before a first date.

Maybe I suffer from optimism, but I like my chances of getting some anilingus tonight, so I am going to shave my asshole.

Optimism by aldo funstigato April 12, 2013

Optimism

The serial replacement of reason with unsubstantiated and dangerous levels of hope.

You're so full of optimism! Your dismissal of the very real threats our planet faces at the moment is dangerous for society.

Optimism by CarlieKiss September 18, 2017