Pickle rage

Getting overly angry and/or aggravated over a small inconvenience because you're in a bad mood or stressed.
aka. being a sour "pickle"

Roommate 1: "Did you buy milk when you were out?"
Roommate 2: "Shit, no I forgot, sorry, I'll get some tomorrow."
Roommate 1: "Are you fucking kidding me, you're making me wait a whole DAY!?"
Roommate 2: "It's just a day bro... you doing okay?"
Roommate 1: "Yeah sorry, just pickle rage, been a long week ya know?"
Roommate 2: "Yeah I get it, don't worry about it."
Roommate 1: "Thanks man."