A simplified way to describe a
fast-declining mental/emotional state, often leading to
short-term bouts of depression or
anxiety.
"
Hey, how's your day going?"
"Terrible. I've got three exams, two papers, and I can't find my keys. I'm spiraling, man."
"
Hey, are you coming to the meeting tonight?"
"Spiraling."
"Oh,
ok, feel better."