Being salty is when you are upset over something little.

Mercury retrograde is the act of taking a shit whilst mooning one or more human beings. Your day can typically being going well, according to your horoscope, until you are forced into witnessing Mercury retrograde. Performing Mercury retrograde will often speed the astrological cycle forward for the individual performing the Mercury retrograde, bringing about happy and fruitful times to come.

A term originating from the United States Navy, used to describe disgruntled senior enlisted members. Also used to describe someone who has sea experience from a prior deployment, for whom the romanticized idea of ship life is gone, and replaced with sea salt.

The act of being upset, angry, or bitter as result of being made fun of or embarassed. Also a characteristic of a person who feels out of place or is feeling attacked

Angry, agitated, annoyed, upset.

To be mad, angry, agitated, upset.

the combination of being both sour and bitter
In chemistry, acids are usually described as being sour, whereas bases are described as being bitter; the neutralization of an acid and a base produces a salt, and thus, salty.