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1.
Commonly referred to as a ginger, or any one else no one cares about. Ginger hair, freckles, and a douchey personality is common.
"Hey look at that soulless over there. Yeah that kid is a fucking douche!"
by J Rey May 12, 2010
 
2.
A term often used in the criticism of music, films, television, games, etc, meaning lacking sensitivity or the capacity for deep feeling. It's often used in a context wherein the user does not like the item in question but otherwise lacks any more specific or valid criticism to level against it. It's also sometimes used to dismiss entire genres that the user is unfamiliar with or bigoted against.
"Electronic music is so soulless."

"Here we go again, another soulless rehash of ______."
by Phlegatu May 24, 2005
 
3.
Cold, hard, cruel; lacking sensitivity or the capacity for deep feeling.
Person 1: "What is wrong with you people?"

Person 2: "For starters, we're soulless."

Person 1: "Ohhh, okay."
by holymotherofknockoutroses April 28, 2013
 
4.
One who pwned you.
A name for a man renowned for him ability to stab anything that moves including shark and DMC has a great amount for a group known as +.
Onecell: OMFGZ's soulless just knifed me from like 15M away
OS: I love little boys
by +<3tehcawk November 27, 2004