Space Invaders 

Individuals or groups of people who sit next to you in cinemas or on public transport when there are plenty of other free seats available.

I was at the cinema alone the other day when about eight space invaders came and sat right next to me.

Space Invaders by Nick VD October 25, 2006

Space Invaders 

A classic arcade game where you pilot a spaceship, at the bottom of the screen, shooting aliens that fly from a formation above you and dodging their own projectiles. I can't believe no one has tried to define this term yet.

(Example is from The Simpsons):

Willy: It's impossible for me to fire a pistol. If you'll check me medical records, you'll see I have a cripplin' arthritis in me index fingerrrs. Look at 'em! holds them up I got it from "Space Invaders" in 1977.

Wiggum: Aw, yeah. That was a pretty addictive video game.

Willy: surprised Video game?

Space Invaders by Dark Laith December 5, 2004

Space Invaders 

When two dudes bang missionary and the top jerks off the bottom.

My boyfriend love playing Space Invaders together! He's real good with joystick.

Space Invaders by slave.of.ganon February 5, 2018

space invaders 

Unwelcome visitors who try to stay despite yoour best efforts excuses, etc. Like unwelcome frends relatives girlfriends etc

Yo, my family was all over my place like a bunch of space invaders eating my food and using my shit.

space invaders by Slydog May 13, 2005

Space Invaders 

To lie under a female with her legs and therefore vagina spread open directly above a male's penis; the male urinates up into the vagina hitting the Clit and her G-Spot. The man must be Erected.

Ben was playing space invaders with Jane as she was shaking her hips side to side to make it more challenging

Space Invaders by Krinkinit April 20, 2009

space invaders 

Unwelcome visitors who try to stay despite yoour best efforts excuses, etc. Like unwelcome firends relatives girlfriends etc

Yo they was all over my place like a bunch of space invaders eating my food and using my shit.

space invaders by Slydog May 13, 2005

space invaders (clitoris) 

Space Invaders is the female act of rubbing ones clitoris with the same motion with which she would if playing the arcade game.

I was laying there in sexual bliss whilst playing space invaders (clitoris)

space invaders (clitoris) by Crusty0871 March 30, 2015