when one has acquired a large amount of dandruff that has fallen from their scalp and onto their back. so much so, it resembles the appearance of salt that has been thrown over their shoulder for good luck and landed on their back.
People are represented as potatoes. If someone tickles your pickle, you describe them as being salty. You can also salt a potato, meaning to shag them or want to shag them.
When you are proven wrong in a situation when you thought you were right; when you are let down after your hopes are up; when you are played/ dissed
1. Person 1: I'm the only one in this classroom with a 4.0 GPA.
Person 2: Actually I also have a 4.0, so I guess you're feeling salty.
2. (In a roast session)
Person one (roasting person 2): You not ready for this roast, you ugly as hell, boul.
Person 2: Nah, you need a shape up cuz your hairline look like a mountain range.