An undesirable woman such as a Gold-digger who "orbits" around a man with money, spending it at her free will without a reasonable exchange of sex. The plural is known as "Space Debris" or more than one piece of space trash "orbiting" around one or more men. It can go both ways as well in the case of a Sugga-Mamma and a man. NOTE: Definition does not include intellectual people who know a lot about space, unless they act like Space Trash.
Upon entering a Club:
"I wouldn't hook up with her man. She's Space Trash. You'll go broke!"
or
"Dayum! Look out for the Space Debris dudes! She looks like a shiny piece of metal, but you'll only get Whacked!"