The act of being salty. One who is salty can be described as "Salt".
Mia: God chloe's so salty today.
Juliana: She's salt.
Being allergic to bananas.
Guy 1- Hey! Want a banana ?
Guy 2- Yeah sure! (eats banana) Oh my gawquebajekeksksksjdj !(coughing and choking)
Guy 1- Dude, I think you have banallergies!