interplanetary 

The act of getting to a level of blackout drunk that you lose entire days of your existence. The hangover feels like the galaxy misplaced an asteroid right into the middle of your skull and its trying to break out. Wanting to become interplanetary usually follows emotional trauma on a scale where you would rather be torn apart by the vacuum of space than be sober.

"Today my girlfriend dumped me, my dog died, and a squirrel climbing a hole in my fly-screen so big a homeless man crawling in and starting squatting in my room. I'm getting fucking interplanetary tonight. Luckily I got fired from my job also because I'm going to need four days to recover."

interplanetary by magicalbuttpir8 November 13, 2015

interplanetary mission

When someone must travel between multiple houses and locations on a mission to aquire illegal drugs, usually cannabis.

A common example is for a couple people to leave one house, pick up some people and smoke some bowls at another house. Then a couple people going to the dealers house to grab say an ounce of weed, then selling some weed at another friends house. Often smoking weed the whole time.

"I had to buy and sell across like 6 homes on this interplanetary mission last night and I'm still high."

interplanetary mission by pownasaurus May 7, 2009

Interplanetary Numeric Processor 

A machine capable of killing off the population of the entire universe. Don't be worried, it's currently lost in the human mental enterprise.

Racist Jebediah: Holy crap! Hurry and get the interplanetary numeric processor to a safe place before it's too late!

Threst The Robots Bar Code 125279: Don't worry, it's lost forever.....OR IS IT?!

Interplanetary Numeric Processor by Threst The Robot June 10, 2009

Interplanetary organism 

A living creature that can thrive on multiple planets or moons.

Thanks to their ability to adapt, humans have become interplanetary organisms and can thrive almost anywhere in the universe.

Interplanetary organism by G47 February 8, 2010

Interplanetary Travel 

Travelling between the eight planets in our solar system. We've reached every one by unmanned probes but all we've been able to take a human to is our moon.

NASA is planning to send humans on an Interplanetary Travel mission to Mars by 2020, but it looks like we have too many problems on Earth to deal with first.

Interplanetary Travel by Nick Weiner January 31, 2009

Interplanetary Amalgamation

A word that’s so wildly incomprehensible, you can’t possible define it.

What the heck is that? That’s like an interplanetary amalgamation!

Interplanetary Amalgamation by PBJelly6 December 11, 2022

Interplanetary Engineering

The discipline of designing and building the infrastructure for a multi-planet species. This is civil engineering, but on other worlds with different gravity, no atmosphere, and deadly radiation. It involves constructing pressurized habitats, landing pads, power grids (likely nuclear or solar), and transportation networks (like pressurized rover tubes or orbital elevators). It requires solving novel problems like managing static-cling dust that destroys seals and building with materials you mined on-site yesterday.

Example: "Interplanetary engineering on Ceres is all about spin gravity. They're designing the Canyon Cities—habitats built into massive trenches, with the whole asteroid spun up to create 0.3g on the inner trench walls. The chief engineer's biggest headache is calibrating the sewage flow for a coriolis effect."

Interplanetary Engineering by Abzugal January 30, 2026