Justifiable Salt

A term used for when you are angry and upset about something, but it is for a good reason or something that seems, as in the term, justifiable.

Person 1: So of COURSE Lindsey decides, 'oh, I should totally go downstairs WITHOUT the group and wander around looking at the fucking whales, causing my group to be twenty minutes late back to the bus!'
Person 2: That's justifiable salt right there.
Person 1: I KNOW! SHE'S SO STUPID!