Astro nut 

The act of ejaculating in space

The astro nut was floating around the space shuttle

Astro nut by Daddy Nipples March 4, 2018

astro nut 

a nut in space worth of the gods

People in space like to do astro nut

astro nut by kdeh April 18, 2017

Astronut 

A person who is nuts about astronomy.

Jesus: "Yes! I received my SkyQuest XX14g GoTo Truss Tube Dobsonian Telescope!"
Daniel: "Astronut!"

Astronut by Todos Valen Verga May 24, 2011

astronut 

A gay loser that has absolutely no friends and gets off by playing DDR every waking moment. Boy what a piece of shit...

Siples: Hey there, wanna play some DDR or maybe i can just suck you off.
Me: No thanks i'm not an astronut.

astronut by Nate Naval May 2, 2005

Astronut 

When you nut so hard it's out of this world

IM GONNA ASTRONUT!!!!!

Astronut by Olem October 5, 2018

Astronut 

Astronut is an astronaut who nuts on space aliens.

Did you see that Astronut? It flooded the galaxy

Astronut by NiggerBob aka bob August 3, 2019

astronut 

nut in space

wow this is good hentai i just astronutted in space

astronut by voidack July 5, 2021