an adjective used to describe someone who is visually disturbing, ugly, and/or nasty.
origin: at the site of a "sour" person, you make a "sour" face, as such when you suck a lemon.
2. When you use it to describe another person's actions. Oh no she didn't!
ex1. Connie: "I saw this homeless person dancing with a streetlamp yesterday."
Chase: "That is oh so sour."
ex2. Derek: "You're a dirty whore."
Lauren: "Oh no you sick and souuur!"
By Julia
Sour
1. opposite of sweet
2. A evil/angry/mad/nasty person
3. A Bitch
1. Bitter 2. What the fuck is wrong with that nigga?
3. Man, you acting hellasour today...
By Julienne
Sour
The act of alienating and or disheveling others to better oneself. There are many ways to go sour, including: acting a fool in front of the opposite sex, blatant disregard for your friends' feelings, and flagrant self-centerdness.